diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 207914b62ddbc17884eeed610fde8fe486f1856e..67268504a206e42b210bba655e4cec4f1afdc2e0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -31,9 +31,9 @@ variables:
   CPPINTTEST_REPO_PATH: caosdb/src/caosdb-cppinttest
   CPPINTTEST_TESTENV_IMAGE_TAG: ${CPPINTTEST_REPO_PATH}/testenv:${CPPINTTEST_IMAGE_SUFFIX}
   # this is the image where the cpplib is installed and where the testsuite runs
-  CPPINTTEST_REGISTRY_IMAGE: ${CI_REGISTRY}/${CPPINTTEST_IMAGE_TAG}
+  CPPINTTEST_REGISTRY_IMAGE: ${CI_REGISTRY}/${CPPINTTEST_TESTENV_IMAGE_TAG}
   # this is the name of the image in the /image-cache/ directory
-  CPPINTTEST_IMAGE_CACHE: ${CPPINTTEST_IMAGE_TAG}.tar
+  CPPINTTEST_IMAGE_CACHE: ${CPPINTTEST_TESTENV_IMAGE_TAG}.tar
 
 
   ## FOR DEBUGGING