diff --git a/check_systemd_service.sh b/check_systemd_service.sh
index da456bb..a5b810f 100755
--- a/check_systemd_service.sh
+++ b/check_systemd_service.sh
@@ -43,7 +43,7 @@ fi
 
 # Check if the unit is enabled
 enabled=$(systemctl is-enabled "$UNIT_NAME")
-if [ "$enabled" != "enabled" ] && [ "$IS_ALLOWED_DISABLED" != true ]; then
+if [ "$enabled" != "enabled" ] && [ "$IS_ALLOWED_DISABLED" = false ]; then
     echo "CRITICAL - $UNIT_NAME is not enabled"
     exit 2
 fi