diff --git a/.github/workflows/checkin.yml b/.github/workflows/checkin.yml
index bcf5d0a..abe7450 100644
--- a/.github/workflows/checkin.yml
+++ b/.github/workflows/checkin.yml
@@ -22,8 +22,7 @@ jobs:
         # Ensure no changes
         run: |
           git add .
-          if git diff --cached --stat --exit-code; then
-          else
+          if ! git diff --cached --stat --exit-code; then
             echo "##[error] Found changed files after build. Please 'yarn build && npm run format' and check in all changes."
             exit 1
           fi
\ No newline at end of file