diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e0683fbb78c2aa5649ec0e8468013d7ad8c43360_LmdpdGxhYi1jaS55bWw=..f4be59529318cdb3792434801da6177baf2a1e82_LmdpdGxhYi1jaS55bWw= 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,3 +9,13 @@
         - yarn
     script:
         - yarn lint
+
+build:
+    stage: checks
+    before_script:
+        - yarn
+    script:
+        - cd packages/ra-cubicweb
+        - yarn build
+        - cd ../demo
+        - yarn build