diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f71fc76258bde47dca4d88b2191522fe4eb16e77..8a0ea33c75896948fd25096fe0e9f69cb0c9799c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -95,6 +95,7 @@ build-testenv:
     - docker pull $CPPLIB_REGISTRY_IMAGE || true # remove??? docker build --pull???
     - docker build
       --build-arg CPPLIB_REGISTRY_IMAGE=$CPPLIB_REGISTRY_IMAGE
+      --build-arg CPPLIB_VERSION=$CPPLIB_VERSION
       --file .docker/Dockerfile
       --pull
       --cache-from $CPPINTTEST_REGISTRY_IMAGE