diff --git a/assets/runtime/functions b/assets/runtime/functions
index d714f8c80..b1e291e8e 100644
--- a/assets/runtime/functions
+++ b/assets/runtime/functions
@@ -2154,6 +2154,7 @@ if [[ ${GITLAB_PAGES_ACCESS_CONTROL} == true ]]; then
   fi
 
   update_template ${GITLAB_PAGES_CONFIG} \
+      GITLAB_RELATIVE_URL_ROOT \
       GITLAB_PAGES_ACCESS_CLIENT_ID \
       GITLAB_PAGES_ACCESS_CLIENT_SECRET \
       GITLAB_PAGES_ACCESS_REDIRECT_URI \