diff --git a/gateway/services.go b/gateway/services.go
index 208713c..32adb20 100644
--- a/gateway/services.go
+++ b/gateway/services.go
@@ -61,7 +61,7 @@ func (s *ServiceImpl) ExecServices(c context.Context, in *pb.ServiceInput) (*pb.
 		switch temp.Kind() {
 		case reflect.Ptr:
 			NewObj = reflect.New(temp.Elem())
-			convertParam(NewObj, in.Param)
+			convertParam(NewObj.Interface(), in.Param)
 			params[i] = NewObj
 		}
 	}