diff --git a/lite/core/scope.cc b/lite/core/scope.cc
index 966f3729faf2e6f48d951c495bca8d2adc456ded..d87360a1da8215332c71739bbfa2660977f4f74c 100644
--- a/lite/core/scope.cc
+++ b/lite/core/scope.cc
@@ -76,7 +76,7 @@ std::vector<std::string> Scope::AttributeVarNames() const {
         std::find(resulted_keys.begin(), resulted_keys.end(), skiped_vars[i]);
     while (iter != resulted_keys.end()) {
       resulted_keys.erase(iter);
-      auto iter =
+      iter =
           std::find(resulted_keys.begin(), resulted_keys.end(), skiped_vars[i]);
     }
   }