diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60da2e1..838c5c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,9 +7,13 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
-### Removed
+### Added
+
+- Using the `--style` option without arguments ignores the style specified in the configuration file, if any. Closes #83.
+
+### Changed
 
-- The `--no-config-file` option was removed. To not read any configuration file, use the `--config-file` option without specifying a configuration filename.
+- The `--no-config-file` option was removed. To not read any configuration file, use the `--config-file` option without specifying a configuration filename. Closes #82.
 
 ## [0.12.0] - 2018-05-28
 
diff --git a/README.md b/README.md
index 07408b3..653b98d 100644
--- a/README.md
+++ b/README.md
@@ -38,8 +38,8 @@ Don't know what *Todo.txt* is? See <https://github.com/todotxt/todo.txt> for the
 
 ```console
 $ next-action --help
-usage: next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] [-n <number> | -a] [-o] [-p [<priority>]]
-[<context|project> ...]
+usage: next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] [-n <number> | -a] [-o] [-p [<priority>]] [-s
+[<style>]] [<context|project> ...]
 
 Show the next action in your todo.txt. The next action is selected from the tasks in the todo.txt file based on task
 properties such as priority, due date, and creation date. Limit the tasks from which the next action is selected by
@@ -61,7 +61,7 @@ optional arguments:
   -o, --overdue         show only overdue next actions
   -p [<priority>], --priority [<priority>]
                         minimum priority (A-Z) of next actions to show (default: None)
-  -s <style>, --style <style>
+  -s [<style>], --style [<style>]
                         colorize the output; available styles: abap, algol, algol_nu, arduino, autumn, borland, bw,
                         colorful, default, emacs, friendly, fruity, igor, lovelace, manni, monokai, murphy, native,
                         paraiso-dark, paraiso-light, pastie, perldoc, rainbow_dash, rrt, tango, trac, vim, vs, xcode
@@ -160,6 +160,8 @@ The next actions can be colorized using the `--style` argument. Run `next-action
 
 When you've decided on a style you prefer, it makes sense to configure the style in the configuration file. See the section below on how to configure *Next-action*.
 
+Not passing an argument to `--style` cancels the style that is configured in the configuration file, if any.
+
 ### Configuring *Next-action*
 
 In addition to specifying options on the command-line, you can also configure options in a configuration file. By default, *Next-action* tries to read a file called [.next-action.cfg](https://raw.githubusercontent.com/fniessink/next-action/master/docs/.next-action.cfg) in your home folder.
@@ -254,9 +256,9 @@ To run the unit tests:
 
 ```console
 $ python -m unittest
-...............................................................................................................................................
+................................................................................................................................................
 ----------------------------------------------------------------------
-Ran 143 tests in 0.420s
+Ran 144 tests in 0.426s
 
 OK
 ```
diff --git a/next_action/arguments/parser.py b/next_action/arguments/parser.py
index 52dc719..8966b0a 100644
--- a/next_action/arguments/parser.py
+++ b/next_action/arguments/parser.py
@@ -23,7 +23,7 @@ class NextActionArgumentParser(argparse.ArgumentParser):
                         "the tasks from which the next action is selected by specifying contexts the tasks must have "
                         "and/or projects the tasks must belong to.",
             usage=textwrap.fill("next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] "
-                                "[-n <number> | -a] [-o] [-p [<priority>]] [<context|project> ...]",
+                                "[-n <number> | -a] [-o] [-p [<priority>]] [-s [<style>]] [<context|project> ...]",
                                 width=shutil.get_terminal_size().columns - len("usage: ")))
         self.__default_filenames = ["~/todo.txt"]
         self.add_optional_arguments()
@@ -56,7 +56,7 @@ class NextActionArgumentParser(argparse.ArgumentParser):
             help="minimum priority (A-Z) of next actions to show (default: %(default)s)")
         styles = sorted(list(get_all_styles()))
         self.add_argument(
-            "-s", "--style", metavar="<style>", choices=styles, default=None,
+            "-s", "--style", metavar="<style>", choices=styles, default=None, nargs="?",
             help="colorize the output; available styles: {0} (default: %(default)s)".format(", ".join(styles)))
 
     def add_positional_arguments(self) -> None:

diff --git a/tests/unittests/arguments/test_config.py b/tests/unittests/arguments/test_config.py
index 6f126d8..2efa764 100644
--- a/tests/unittests/arguments/test_config.py
+++ b/tests/unittests/arguments/test_config.py
@@ -240,6 +240,12 @@ class ConfigStyleTest(ConfigTestCase):
         """ Test that a command line style overrides the style in the config file. """
         self.assertEqual("vim", parse_arguments()[1].style)
 
+    @patch.object(sys, "argv", ["next-action", "--style"])
+    @patch.object(config, "open", mock_open(read_data="style: default"))
+    def test_cancel_style(self):
+        """ Test that --style without style cancels the style in the config file. """
+        self.assertEqual(None, parse_arguments()[1].style)
+
     @patch.object(sys, "argv", ["next-action"])
     @patch.object(config, "open", mock_open(read_data="style: invalid_style"))
     @patch.object(sys.stderr, "write")
diff --git a/tests/unittests/arguments/test_parser.py b/tests/unittests/arguments/test_parser.py
index 6a262af..f9eebd5 100644
--- a/tests/unittests/arguments/test_parser.py
+++ b/tests/unittests/arguments/test_parser.py
@@ -11,7 +11,7 @@ from next_action.arguments import config, parse_arguments
 
 USAGE_MESSAGE = textwrap.fill(
     "usage: next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] [-n <number> | -a] [-o] "
-    "[-p [<priority>]] [<context|project> ...]", 120) + "\n"
+    "[-p [<priority>]] [-s [<style>]] [<context|project> ...]", 120) + "\n"
 
 
 class ParserTestCase(unittest.TestCase):
diff --git a/tests/unittests/test_cli.py b/tests/unittests/test_cli.py
index f26c609..b477698 100644
--- a/tests/unittests/test_cli.py
+++ b/tests/unittests/test_cli.py
@@ -65,8 +65,8 @@ class CLITest(unittest.TestCase):
         os.environ['COLUMNS'] = "120"  # Fake that the terminal is wide enough.
         self.assertRaises(SystemExit, next_action)
         self.assertEqual(call("""\
-usage: next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] [-n <number> | -a] [-o] [-p [<priority>]]
-[<context|project> ...]
+usage: next-action [-h] [--version] [-c [<config.cfg>]] [-f <todo.txt>] [-n <number> | -a] [-o] [-p [<priority>]] [-s
+[<style>]] [<context|project> ...]
 
 Show the next action in your todo.txt. The next action is selected from the tasks in the todo.txt file based on task
 properties such as priority, due date, and creation date. Limit the tasks from which the next action is selected by
@@ -88,7 +88,7 @@ optional arguments:
   -o, --overdue         show only overdue next actions
   -p [<priority>], --priority [<priority>]
                         minimum priority (A-Z) of next actions to show (default: None)
-  -s <style>, --style <style>
+  -s [<style>], --style [<style>]
                         colorize the output; available styles: abap, algol, algol_nu, arduino, autumn, borland, bw,
                         colorful, default, emacs, friendly, fruity, igor, lovelace, manni, monokai, murphy, native,
                         paraiso-dark, paraiso-light, pastie, perldoc, rainbow_dash, rrt, tango, trac, vim, vs, xcode

Make it possible to overwrite the style in the configuration file by not passing a style to the --style argument
tests/unittests/arguments/test_config.py::ConfigFileTest::test_error_opening tests/unittests/arguments/test_config.py::ConfigFileTest::test_error_parsing tests/unittests/arguments/test_config.py::ConfigFileTest::test_file_not_found tests/unittests/arguments/test_config.py::ConfigFileTest::test_invalid_document tests/unittests/arguments/test_config.py::ConfigFileTest::test_no_file_key tests/unittests/arguments/test_config.py::FilenameTest::test_invalid_filename tests/unittests/arguments/test_config.py::FilenameTest::test_valid_and_invalid tests/unittests/arguments/test_config.py::NumberTest::test_all_and_number tests/unittests/arguments/test_config.py::NumberTest::test_all_false tests/unittests/arguments/test_config.py::NumberTest::test_invalid_number tests/unittests/arguments/test_config.py::NumberTest::test_zero tests/unittests/arguments/test_config.py::ConfigStyleTest::test_cancel_style tests/unittests/arguments/test_config.py::ConfigStyleTest::test_invalid_style tests/unittests/arguments/test_config.py::PriorityTest::test_invalid_priority tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_empty_context tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_empty_excluded_project tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_empty_project tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_faulty_option tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_include_exclude_context tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_include_exclude_project tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_invalid_extra_argument tests/unittests/arguments/test_parser.py::NumberTest::test_all_and_number tests/unittests/arguments/test_parser.py::NumberTest::test_faulty_number tests/unittests/test_cli.py::CLITest::test_missing_file
tests/unittests/arguments/test_config.py::ConfigFileTest::test_empty_file tests/unittests/arguments/test_config.py::ConfigFileTest::test_missing_default_config tests/unittests/arguments/test_config.py::ConfigFileTest::test_skip_config tests/unittests/arguments/test_config.py::ConfigFileTest::test_write_config tests/unittests/arguments/test_config.py::FilenameTest::test_cli_takes_precedence tests/unittests/arguments/test_config.py::FilenameTest::test_valid_file tests/unittests/arguments/test_config.py::FilenameTest::test_valid_files tests/unittests/arguments/test_config.py::NumberTest::test_all_true tests/unittests/arguments/test_config.py::NumberTest::test_argument_all_overrides tests/unittests/arguments/test_config.py::NumberTest::test_argument_nr_overrides tests/unittests/arguments/test_config.py::NumberTest::test_cli_takes_precedence tests/unittests/arguments/test_config.py::NumberTest::test_valid_number tests/unittests/arguments/test_config.py::ConfigStyleTest::test_override_style tests/unittests/arguments/test_config.py::ConfigStyleTest::test_valid_style tests/unittests/arguments/test_config.py::PriorityTest::test_cancel_priority tests/unittests/arguments/test_config.py::PriorityTest::test_override_priority tests/unittests/arguments/test_config.py::PriorityTest::test_valid_priority tests/unittests/arguments/test_parser.py::NoArgumentTest::test_filename tests/unittests/arguments/test_parser.py::NoArgumentTest::test_filters tests/unittests/arguments/test_parser.py::NoArgumentTest::test_style tests/unittests/arguments/test_parser.py::FilenameTest::test__add_filename_twice tests/unittests/arguments/test_parser.py::FilenameTest::test_add_default_filename tests/unittests/arguments/test_parser.py::FilenameTest::test_default_and_non_default tests/unittests/arguments/test_parser.py::FilenameTest::test_filename_argument tests/unittests/arguments/test_parser.py::FilenameTest::test_long_filename_argument tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_contexts_and_projects tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_exclude_context tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_exclude_project tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_multiple_contexts tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_multiple_projects tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_one_context tests/unittests/arguments/test_parser.py::FilterArgumentTest::test_one_project tests/unittests/arguments/test_parser.py::NumberTest::test_all_actions tests/unittests/arguments/test_parser.py::NumberTest::test_default_number tests/unittests/arguments/test_parser.py::NumberTest::test_number tests/unittests/test_cli.py::CLITest::test_context tests/unittests/test_cli.py::CLITest::test_empty_task_file tests/unittests/test_cli.py::CLITest::test_ignore_empty_lines tests/unittests/test_cli.py::CLITest::test_number tests/unittests/test_cli.py::CLITest::test_one_task tests/unittests/test_cli.py::CLITest::test_project tests/unittests/test_cli.py::CLITest::test_reading_stdin tests/unittests/test_cli.py::CLITest::test_show_all_actions tests/unittests/test_cli.py::CLITest::test_version