diff --git a/frameworks/native/websocket_client/websocket_client.cpp b/frameworks/native/websocket_client/websocket_client.cpp
index caf78f06972193d082181dadaf21fb0654a2ae82..ef35fc5869f14324a5f3c0d2e99dd4f97116f5a4 100644
--- a/frameworks/native/websocket_client/websocket_client.cpp
+++ b/frameworks/native/websocket_client/websocket_client.cpp
@@ -199,7 +199,7 @@ int LwsCallbackClientReceive(lws *wsi, lws_callback_reasons reason, void *user,
         return HttpDummy(wsi, reason, user, in, len);
     }
     std::string data = client->GetData();
-    client->onMessageCallback_(client, data.c_str(), len);
+    client->onMessageCallback_(client, data.c_str(), data.size());
     client->ClearData();
     return HttpDummy(wsi, reason, user, in, len);
 }