diff --git a/demo-serving/op/ctr_prediction_op.cpp b/demo-serving/op/ctr_prediction_op.cpp
index 4311148ef204d9027a02237a2b9efbf7593d6726..8e0e6fc0ec1f82262a4dedc2dd0ccc3c2331b6d4 100644
--- a/demo-serving/op/ctr_prediction_op.cpp
+++ b/demo-serving/op/ctr_prediction_op.cpp
@@ -109,7 +109,7 @@ int CTRPredictionOp::inference() {
   if (kvinfo != NULL) {
     std::string table_name;
     if (kvinfo->sparse_param_service_type != configure::EngineDesc::NONE) {
-      std::string table_name = kvinfo->sparse_param_service_table_name;
+      table_name = kvinfo->sparse_param_service_table_name;
     }
 
     if (kvinfo->sparse_param_service_type == configure::EngineDesc::LOCAL) {
diff --git a/predictor/framework/kv_manager.h b/predictor/framework/kv_manager.h
index 35031f96d3c1c7f19f11aa70d5230ebae290feb3..c1ca8409df624379107a9ba6ed0a26f7e6f0df30 100644
--- a/predictor/framework/kv_manager.h
+++ b/predictor/framework/kv_manager.h
@@ -66,6 +66,9 @@ class KVManager {
         LOG(ERROR) << "Failed insert item: " << engine_name;
         return -1;
       }
+
+      LOG(WARNING) << engine_name << ": "
+                   << kvinfo->sparse_param_service_table_name;
       LOG(WARNING) << "Succ proc initialize kvmanager for engine: "
                    << engine_name;
     }