diff --git a/paddle/operators/dynamic_recurrent_op.cc b/paddle/operators/dynamic_recurrent_op.cc
index dce8c8d835679595060f21b81301eb26defe7d04..a0b06ac1dc305bc899f9abaafcc980a6150ecda9 100644
--- a/paddle/operators/dynamic_recurrent_op.cc
+++ b/paddle/operators/dynamic_recurrent_op.cc
@@ -358,11 +358,11 @@ LoDTensor* RNNAlgorithm::ArgCache::GetTensor(const framework::Scope& scope,
 }
 
 const std::array<rnn::ArgumentName, 2> RNNAlgorithm::kArgNames{
-    rnn::ArgumentName{"step_unit", "step_scopes", "inputs", "outputs", "states",
-                      "ex_states", "initial_states"},
-    rnn::ArgumentName{"step_unit", "step_scopes@GRAD", "outputs@GRAD",
-                      "inputs@GRAD", "states", "ex_states",
-                      "initial_states@GRAD"}};
+    {rnn::ArgumentName{"step_unit", "step_scopes", "inputs", "outputs",
+                       "states", "ex_states", "initial_states"},
+     rnn::ArgumentName{"step_unit", "step_scopes@GRAD", "outputs@GRAD",
+                       "inputs@GRAD", "states", "ex_states",
+                       "initial_states@GRAD"}}};
 
 void DynamicRecurrentOp::Run(const framework::Scope& scope,
                              const platform::DeviceContext& dev_ctx) const {