diff --git a/eg/tryhy/app.yaml b/eg/tryhy/app.yaml
index b492c71..50cdf5c 100644
--- a/eg/tryhy/app.yaml
+++ b/eg/tryhy/app.yaml
@@ -17,3 +17,6 @@ handlers:
 
 - url: .*
   script: main.__hymain__.app
+
+inbound_services:
+- warmup
\ No newline at end of file