diff --git a/omada/docker-compose.yml b/omada/docker-compose.yml
index eca22de..e765a65 100644
--- a/omada/docker-compose.yml
+++ b/omada/docker-compose.yml
@@ -1,6 +1,6 @@
 services:
   omada-controller:
-    image: ${IMAGE_NAME}
+    image: ${IMAGE_NAME:-mbentley/omada-controller:5.15}
     restart: unless-stopped
     ulimits:
       nofile: