diff --git a/utils/tests/gitlab-ci-test.yml b/utils/tests/gitlab-ci-test.yml
index f1e4e67fd..22984de8d 100644
--- a/utils/tests/gitlab-ci-test.yml
+++ b/utils/tests/gitlab-ci-test.yml
@@ -14,6 +14,7 @@
     - CXX="ccache $COMPILER" ./waf configure --enable-examples --enable-tests --disable-gtk --disable-python -d $MODE
     - ./test.py $VALGRIND_FLAG $FULLNESS
   cache:
+    key: "$CI_JOB_NAME-$CI_COMMIT_REF_SLUG"
     paths:
       - $CCACHE_BASEDIR_VALUE/
   variables: