diff --git a/.gitlab-ci/run-test.sh b/.gitlab-ci/run-test.sh
index a91b8b7360..5b3f18f0f5 100755
--- a/.gitlab-ci/run-test.sh
+++ b/.gitlab-ci/run-test.sh
@@ -25,7 +25,7 @@ do_clean() {
     git checkout -- po/
 
     git status
-    git diff
+    git diff --exit-code
 }
 
 ARTIFACT_DIR=/tmp/nm-artifact