diff --git a/scripts/gitlab-ci/docker-build.sh b/scripts/gitlab-ci/docker-build.sh
index ecd5c4df9629c443add6f24b442996f6087a2ba5..6236e1b46f3f24b906ae3cea473063bd513e3bc7 100755
--- a/scripts/gitlab-ci/docker-build.sh
+++ b/scripts/gitlab-ci/docker-build.sh
@@ -5,7 +5,7 @@
 
 set -x;
 
-BUILD_ARGS="";
+BUILD_ARGS='';
 
 for arg in ${DOCKER_BUILD_ARGS}; do
   BUILD_ARGS="${BUILD_ARGS} --build-arg ${arg}";