diff --git a/services/implementation/include/dependency/hichain/hichain_connector.h b/services/implementation/include/dependency/hichain/hichain_connector.h
index 83483930..56589982 100644
--- a/services/implementation/include/dependency/hichain/hichain_connector.h
+++ b/services/implementation/include/dependency/hichain/hichain_connector.h
@@ -37,7 +37,7 @@ struct GroupInfo {
     int32_t groupVisibility;
     std::string userId;
 
-    GroupInfo() : groupName(""), groupId(""), groupOwner(""), groupType(0), groupVisibility(0), userId(0)
+    GroupInfo() : groupName(""), groupId(""), groupOwner(""), groupType(0), groupVisibility(0), userId("")
     {
     }
 };