diff --git a/ge/offline/single_op_parser.h b/ge/offline/single_op_parser.h
index a728b5b9..71aa58bb 100644
--- a/ge/offline/single_op_parser.h
+++ b/ge/offline/single_op_parser.h
@@ -29,7 +29,7 @@
 namespace ge {
 struct SingleOpTensorDesc {
 public:
-  bool GetValidFlag() { return is_valid_; }
+  bool GetValidFlag() const { return is_valid_; }
   void SetValidFlag(bool is_valid) { is_valid_ = is_valid; }
 public:
   std::string name;