diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0e5bb96adf..18933bd6c6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -172,7 +172,7 @@ checkupdates_runner:
     # when two jobs try to push at the same time they occasionally fail, so try one more time if it fails
     - git push origin HEAD:master || (git pull --rebase origin master && git push origin HEAD:master)
     - echo "============== Summary ====================="
-    - grep -v "INFO: Processing" /tmp/out
+    - 'grep -v "INFO: Processing" /tmp/out'
 
 fdroid build:
   image: registry.gitlab.com/fdroid/ci-images-client:latest