diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 79b5e368faf9159e82046530605f70e3c94baedb..144ac7351b693ace5df085fe1f1211f2fd360c34 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,6 +4,7 @@ stages:
   - build
 
 build-job:
+  only: main
   stage: build
   script:
     - stack build