diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ee50fa706cb1e0a1049f8bdf2410b17731ee52da..27cb4f05bd277424b16395f6cd089b7f2bb9c378 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -25,9 +25,11 @@
   -   echo "directory wolf exists"
   -   cd wolf
   -   git pull
+  -   git checkout $WOLF_CORE_BRANCH
   - else
   -   git clone ssh://git@gitlab.iri.upc.edu:2202/mobile_robotics/wolf_projects/wolf_lib/wolf.git
   -   cd wolf
+  -   git checkout $WOLF_CORE_BRANCH
   - fi
   - mkdir -pv build
   - cd build