diff --git a/paddle/framework/op_desc.cc b/paddle/framework/op_desc.cc
index 02aa74a8420a5c685c88d7cb0b487284814b3690..c2e796b7c1b6e359765bafd6cd66fa16d69897a1 100644
--- a/paddle/framework/op_desc.cc
+++ b/paddle/framework/op_desc.cc
@@ -25,6 +25,7 @@ OpDescBind::OpDescBind(const std::string &type, const VariableNameMap &inputs,
   inputs_ = inputs;
   outputs_ = outputs;
   attrs_ = attrs;
+  need_update_ = true;
 }
 
 OpDesc *OpDescBind::Proto() {