diff --git a/ai/compose.yaml b/ai/compose.yaml
index 6b94153..aeafd61 100644
--- a/ai/compose.yaml
+++ b/ai/compose.yaml
@@ -256,7 +256,7 @@ services:
       TZ: ${TIMEZONE:-Europe/Berlin}
       NODE_ENV: production
       # Connect to RunPod Supervisor via Tailscale
-      SUPERVISOR_HOST: ${GPU_TAILSCALE_IP}
+      SUPERVISOR_HOST: ${GPU_TAILSCALE_HOST}
       SUPERVISOR_PORT: ${SUPERVISOR_BACKEND_PORT:-9001}
       # No auth needed - Supervisor has auth disabled (protected by Authelia)
     networks: