diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1bc67cd11..b0aea2968 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -21,7 +21,7 @@ phpunit_basic:
     - /etc/init.d/postgresql start
     - /usr/local/sbin/init-database.sh
     - sh ./utils/gitlab-ci/check-schema.sh
-    - su -s /bin/bash -u www-data -c "php ./update.php --debug-feed 1"
+    - su -s /bin/bash www-data -c "php ./update.php --debug-feed 1"
     - phpunit tests/*.php
 
 phpunit_functional: