diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index d0bdf0a..6147fa6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,7 +11,8 @@ image: gcc
 
 build:
   stage: build
-  tags: gcc
+  tags: 
+    - gcc
   # instead of calling g++ directly you can also use some build toolkit like make
   # install the necessary build tools when needed
   before_script: