diff --git a/gitlab/functions.sh b/gitlab/functions.sh
index acd0f18c9b282e66c92c22f356638d37cb541ba3..829342cefcec5b2f3c0ff4987afee542b789c768 100644
--- a/gitlab/functions.sh
+++ b/gitlab/functions.sh
@@ -424,15 +424,15 @@ fi
 DOC_UPLOADS=()
 
 if [[ "${IS_MASTER} == "true" ]]; then
-  DOC_UPLOADS+=("$DOCS_SERVER_PREFIX/master/")
+  DOC_UPLOADS+=("${DOCS_SERVER_PREFIX}/master/")
 fi
 
 if [[ -n "${CI_COMMIT_TAG}" ]]; then
-  DOC_UPLOADS+=("$DOCS_SERVER_PREFIX/$CI_COMMIT_TAG/")
+  DOC_UPLOADS+=("${DOCS_SERVER_PREFIX}/${CI_COMMIT_TAG}/")
 fi
 
 if [[ -n "${CI_COMMIT_TAG}" && "${IS_MASTER}" == "true" ]]; then
-  DOC_UPLOADS+=("$DOCS_SERVER_PREFIX/stable/")
+  DOC_UPLOADS+=("${DOCS_SERVER_PREFIX}/stable/")
 fi
 unset DOCS_SERVER_PREFIX
 check_env DOC_UPLOADS