diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 38140f5f4816ab6e5293ddeae69c22900bf2ffd6..76022f0e8883b4f64fedb9cc6d31e17010719f99 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -65,7 +65,9 @@ config:ubuntu:
 build:ubuntu:
   image: fperignon/hysop:ubuntu
   stage: build
-  script: "sh ci/build.sh"
+  script:
+    - cd build
+    - make
   artifacts:
     paths:
     - build/