diff --git a/payapi/src/main/kotlin/com/supwisdom/dlpay/agent/service/inapp_alipay.kt b/payapi/src/main/kotlin/com/supwisdom/dlpay/agent/service/inapp_alipay.kt
index f87f922..3066b64 100644
--- a/payapi/src/main/kotlin/com/supwisdom/dlpay/agent/service/inapp_alipay.kt
+++ b/payapi/src/main/kotlin/com/supwisdom/dlpay/agent/service/inapp_alipay.kt
@@ -16,7 +16,7 @@
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 
-    override fun notify(String: refno, request: HttpServletRequest): AgentResponse<AlipayInAppResponse>? {
+    override fun notify(refno: String, request: HttpServletRequest): AgentResponse<AlipayInAppResponse>? {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }