diff --git a/paddle/fluid/operators/cvm_op.cc b/paddle/fluid/operators/cvm_op.cc
index dccfaf35ac5b6d7158e7f01366f7f90f1c10d650..5f0413797ea1df7914a4455967743756ca6a2208 100644
--- a/paddle/fluid/operators/cvm_op.cc
+++ b/paddle/fluid/operators/cvm_op.cc
@@ -132,6 +132,7 @@ CVM Operator.
 )DOC");
   }
 };
+
 class CVMGradOpDescMaker : public framework::SingleGradOpDescMaker {
  public:
   using framework::SingleGradOpDescMaker::SingleGradOpDescMaker;
@@ -149,6 +150,7 @@ class CVMGradOpDescMaker : public framework::SingleGradOpDescMaker {
     return op;
   }
 };
+
 }  // namespace operators
 }  // namespace paddle