diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 465afa0434cb7d245fdf934ea92ac056e2a7d0ec..840ff32904892b831800a3340ae7ad8b0d21cb4c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -28,10 +28,12 @@ build-job:       # This job runs in the build stage, which runs first.
   script:
     - echo "Compiling the code..."
     - echo "Compile complete."
+    - set -x
     - |
       echo line1
       echo line2
       echo line3
+    - set +x
 
 lint-test-job:   # This job also runs in the test stage.
   stage: test    # It can run at the same time as unit-test-job (in parallel).