 In the final year of his entry-level contract, Fällström returned to Sweden during the 2014–15 season in signing a multi-year contract with original club, Djurgårdens IF.Fällström's second tenure with the club was blighted due to a concussion, limiting him to play in just 26 games over two seasons.Fällström was cleared to resume playing and was signed to a one-year extension with DIF on April 14, 2016.