diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 697286dfdad90fa67b3baaed4207f3091fdc5fbd..cc7541c8dfd7c3c818c98107d9b5d57ed331c0cc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -35,7 +35,7 @@ test:
     - ruff check source
     - appstreamcli validate --explain --strict source/data/metainfo.xml
     - desktop-file-validate source/data/*.desktop
-    - find source/locales/ | tr "\n" " " | grep -vq \.mo
+    - find source/locales/ | tr "\n" " " | grep -vq \.mo || (echo "[ERROR] Found .mo files"; false)
     - make --directory=source/ flatpak
     - flatpak run --filesystem=$CI_PROJECT_DIR/source/tests/:ro --command=source/tests/tests.py --env=MONOPHONY_LOG_LEVELS=ERRO ${APP_ID} --verbose