diff --git a/ihatemoney/forms.py b/ihatemoney/forms.py
index af44ead..c4fc32a 100644
--- a/ihatemoney/forms.py
+++ b/ihatemoney/forms.py
@@ -254,7 +254,7 @@ class ProjectFormWithCaptcha(ProjectForm):
     )
 
     def validate_captcha(self, field):
-        if not field.data.lower() == _("euro"):
+        if not field.data.lower() == _("euro").lower():
             message = _("Please, validate the captcha to proceed.")
             raise ValidationError(Markup(message))
 

diff --git a/ihatemoney/tests/main_test.py b/ihatemoney/tests/main_test.py
index 97ab82a..f0a11d6 100644
--- a/ihatemoney/tests/main_test.py
+++ b/ihatemoney/tests/main_test.py
@@ -301,6 +301,23 @@ class EmailFailureTestCase(IhatemoneyTestCase):
 class CaptchaTestCase(IhatemoneyTestCase):
     ENABLE_CAPTCHA = True
 
+    def test_project_creation_with_captcha_case_insensitive(self):
+        # Test that case doesn't matter
+        # Patch the lazy_gettext as it is imported as '_' in forms for captcha value check
+        with patch("ihatemoney.forms._", new=lambda x: "ÉÙÜẞ"), self.client as c:
+            c.post(
+                "/create",
+                data={
+                    "name": "raclette party",
+                    "id": "raclette",
+                    "password": "party",
+                    "contact_email": "raclette@notmyidea.org",
+                    "default_currency": "USD",
+                    "captcha": "éùüß",
+                },
+            )
+            assert len(models.Project.query.all()) == 1
+
     def test_project_creation_with_captcha(self):
         with self.client as c:
             c.post(

Creating new project on hosted site fails on captcha
Sorry in advance if this bug tracker is not meant for issues with the hosted site.

I tried to create a new project but the captcha validation always fails. I am 99.9% sure I am human and answering it correctly:

![Bildschirmfoto_2022-09-09_09-19-07](https://user-images.githubusercontent.com/7661092/189294623-be979967-42bc-437e-894c-49623e6ca4fb.png)

I tried in multiple browsers but always got the verification fail.
ihatemoney/tests/main_test.py::CaptchaTestCase::test_project_creation_with_captcha_case_insensitive
ihatemoney/tests/main_test.py::ConfigurationTestCase::test_default_configuration ihatemoney/tests/main_test.py::ConfigurationTestCase::test_default_configuration_file ihatemoney/tests/main_test.py::ConfigurationTestCase::test_env_var_configuration_file ihatemoney/tests/main_test.py::ServerTestCase::test_homepage ihatemoney/tests/main_test.py::ServerTestCase::test_prefixed ihatemoney/tests/main_test.py::ServerTestCase::test_unprefixed ihatemoney/tests/main_test.py::CommandTestCase::test_demo_project_deletion ihatemoney/tests/main_test.py::CommandTestCase::test_generate_config ihatemoney/tests/main_test.py::CommandTestCase::test_generate_password_hash ihatemoney/tests/main_test.py::ModelsTestCase::test_bill_pay_each ihatemoney/tests/main_test.py::ModelsTestCase::test_weighted_bills ihatemoney/tests/main_test.py::EmailFailureTestCase::test_creation_email_failure_smtp ihatemoney/tests/main_test.py::EmailFailureTestCase::test_creation_email_failure_socket ihatemoney/tests/main_test.py::EmailFailureTestCase::test_invitation_email_failure ihatemoney/tests/main_test.py::EmailFailureTestCase::test_password_reset_email_failure ihatemoney/tests/main_test.py::CaptchaTestCase::test_api_project_creation_does_not_need_captcha ihatemoney/tests/main_test.py::CaptchaTestCase::test_project_creation_with_captcha ihatemoney/tests/main_test.py::TestCurrencyConverter::test_exchange_currency ihatemoney/tests/main_test.py::TestCurrencyConverter::test_failing_remote ihatemoney/tests/main_test.py::TestCurrencyConverter::test_get_currencies ihatemoney/tests/main_test.py::TestCurrencyConverter::test_only_one_instance