diff --git a/.github/workflows/impress.yml b/.github/workflows/impress.yml
index 86867b5a..eed833ca 100644
--- a/.github/workflows/impress.yml
+++ b/.github/workflows/impress.yml
@@ -27,7 +27,7 @@ jobs:
       - name: Enforce absence of print statements in code
         if: always()
         run: |
-          ! git diff origin/${{ github.event.pull_request.base.ref }}..HEAD -- . ':(exclude)**/impress.yml' | grep "print("
+          ! git diff origin/${{ github.event.pull_request.base.ref }}..HEAD -- src/backend ':(exclude)**/impress.yml' | grep "print("
       - name: Check absence of fixup commits
         if: always()
         run: |