diff --git a/paddle/fluid/operators/sum_op.h b/paddle/fluid/operators/sum_op.h
index 84b418bd307b7ba458bf340a81e0ee2036113be9..d3c905c0b86906fd6d1ef98f257e057ab8458131 100644
--- a/paddle/fluid/operators/sum_op.h
+++ b/paddle/fluid/operators/sum_op.h
@@ -100,7 +100,7 @@ class SumKernel : public framework::OpKernel<T> {
         inputs.push_back(&temp_in0);
         for (size_t i = 1; i < in_vars.size(); ++i) {
           auto &in = in_vars[i]->Get<SelectedRows>();
-          if (!in.rows().empty()) {
+          if (in.rows().size() > 0) {
             inputs.push_back(&in);
           }
         }