diff --git a/gitlab/functions.sh b/gitlab/functions.sh
index a282533847de891f0791577bc8361b492aadfa88..7c5a49dc8f9c68f9d2cfbca8e9deb9c1a2e05552 100644
--- a/gitlab/functions.sh
+++ b/gitlab/functions.sh
@@ -27,7 +27,7 @@ log_error() {
 
 # Checks a given environment variable is set (non-zero size)
 check_env() {
-  if [ -z "${!${1}}" ]; then
+  if [ -z "${!1}" ]; then
     log_error "Variable ${1} is undefined - aborting...";
     exit 1
   else