diff --git a/.github/workflows/testing-docs.yml b/.github/workflows/testing-docs.yml
index 7a1f4797e7..bee1c4cf03 100644
--- a/.github/workflows/testing-docs.yml
+++ b/.github/workflows/testing-docs.yml
@@ -41,6 +41,7 @@ jobs:
           run: make testing-docs
 
         - name: Check for changes
+          if: env.GIT_DIFF
           id: check_changes
           run: |
             git show HEAD:scripts/test_doc/test_documentation.md > committed_file.md