diff --git a/ClockFACardDemo/entry/src/main/config.json b/ClockFACardDemo/entry/src/main/config.json
index d33022ed76c2b8de1c7a38231e2a76668d4b6db3..e3a41fde3e2852c5d019c242ba3bc48cd8d9d7d2 100644
--- a/ClockFACardDemo/entry/src/main/config.json
+++ b/ClockFACardDemo/entry/src/main/config.json
@@ -31,7 +31,7 @@
         "reason": "keep service ability backgroud running",
         "usedScene": {
           "ability": [
-            ".StepSensorService"
+            ".TimerAbility"
           ],
           "when": "always"
         }