diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index be4656572..2df316a57 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -51,10 +51,14 @@ jobs:
         java-version: 11
         cache: 'sbt'
         distribution: 'temurin'
+    - name: Check code formatting
+      run: sbt scalafmtCheckAll
+      working-directory: ${{env.EXERCISES_DIRECTORY}}/${{matrix.exercise}}
 
     - name: Test with sbt
       run: sbt test
       working-directory: ${{env.EXERCISES_DIRECTORY}}/${{matrix.exercise}}
+
   validate_course_summary:
     if: ${{ always() }}
     runs-on: ubuntu-latest