diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 87c9d9c3837b9a5c28c366e9bb84b9d358180687..f47ad12a52e214a6146f5d51baf32455e57e8b0f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,6 +7,24 @@ stages:
 
 ############ YAML ANCHORS ############
 .preliminaries_template: &preliminaries_definition
+  # Print variables
+  - echo $CI_COMMIT_BRANCH
+  - echo $WOLF_IMU_BRANCH
+  - echo $WOLF_GNSS_BRANCH
+  - echo $WOLF_LASER_BRANCH
+  - echo $WOLF_VISION_BRANCH
+  - echo $WOLF_APRILTAG_BRANCH
+  - echo $WOLF_BODYDYNAMICS_BRANCH
+  - echo $GNSSUTILS_BRANCH
+  - echo $LASERSCANUTILS_BRANCH
+  - echo $DEPLOY_CI_ROS
+  - echo $WOLF_ROS_IMU_BRANCH
+  - echo $WOLF_ROS_GNSS_BRANCH
+  - echo $WOLF_ROS_LASER_BRANCH
+  - echo $WOLF_ROS_VISION_BRANCH
+  - echo $WOLF_ROS_APRILTAG_BRANCH
+  - echo $WOLF_ROS_BODYDYNAMICS_BRANCH
+
   ## Install ssh-agent if not already installed, it is required by Docker.
   ## (change apt-get to yum if you use an RPM-based image)
   - 'which ssh-agent || ( apt-get update -y && apt-get install openssh-client -y )'