diff --git a/tests/gitlab.yml b/tests/gitlab.yml
index 9e0183ad6335ec34525afd66a716cef1ce4f95a4..e5f89128b5f057d9ff00a845aa11b939743540bd 100644
--- a/tests/gitlab.yml
+++ b/tests/gitlab.yml
@@ -26,7 +26,7 @@ Code Quality:
     REPORT_FORMAT: html
   script:
     - |
-      export SOURCE_CODE='$(php /usr/local/bin/volume.php /code) | cut -d: -f1
+      export SOURCE_CODE=$(php /usr/local/bin/volume.php /code) | cut -d: -f1
     - |
       if ! docker info &>/dev/null; then
         if [ -z "$DOCKER_HOST" -a "$KUBERNETES_PORT" ]; then