diff --git a/scripts/check_proxy_state.sh b/scripts/check_proxy_state.sh
index 31d3a90..cee9db4 100755
--- a/scripts/check_proxy_state.sh
+++ b/scripts/check_proxy_state.sh
@@ -5,7 +5,7 @@ RESTART=$RESTART
 RESTART_COUNTER=0
 
 # Set env variables
-DOMAIN=$1
+DOMAIN="$1"
 PROXY_SERVICE_FILE=$PROXY_SERVICE_FILE
 ROLE=$ROLE
 SERVICE_NAME=$SERVICE_NAME