diff --git a/paddle/fluid/operators/fused_embedding_fc_lstm_op.cc b/paddle/fluid/operators/fused_embedding_fc_lstm_op.cc
index f74d3378a6a7894b86540f4f0260a0da5e5c47e3..dedecf3440d6d8b9574f0da08074ac3191f4cef6 100644
--- a/paddle/fluid/operators/fused_embedding_fc_lstm_op.cc
+++ b/paddle/fluid/operators/fused_embedding_fc_lstm_op.cc
@@ -97,7 +97,6 @@ void FusedEmbeddingFCLSTMOp::InferShape(
   if (ctx->Attrs().Get<bool>("use_seq")) {
     xx_width = wh_dims[1];
   } else {
-    // xx_width = x_dims[1] > wh_dims[1] ? wh_dims[1] : x_dims[1];   // ?
     xx_width = wh_dims[1];  //
     PADDLE_ENFORCE(ctx->HasOutput("BatchedInput"),
                    "Assert only one Output(BatchedInput) of LSTM.");