diff --git a/helper/object_helper.h b/helper/object_helper.h
index f754863bf4a6414104c47718d9363c5a40fb890f..35e3da15b994d4a355177ab866ce4576bf9cd7db 100644
--- a/helper/object_helper.h
+++ b/helper/object_helper.h
@@ -43,6 +43,7 @@ public:
             delete[] value;
         } else {
             delete value;
+            value = nullptr;
         }
     }
 };
@@ -60,6 +61,7 @@ public:
             delete[] data_;
         } else {
             delete data_;
+            data_ = nullptr;
         }
     }