diff --git a/paddle/fluid/operators/cast_op.h b/paddle/fluid/operators/cast_op.h
index 68d0832ba574a47c6c81de68970990d4e21a9e64..6220e57f5941d89cbf0aea268b85ad55af6132cc 100644
--- a/paddle/fluid/operators/cast_op.h
+++ b/paddle/fluid/operators/cast_op.h
@@ -55,7 +55,8 @@ class CastOpKernel : public framework::OpKernel<InT> {
     auto* in = context.Input<framework::Tensor>("X");
     auto* out = context.Output<framework::Tensor>("Out");
     framework::VisitDataType(
-        static_cast<framework::proto::VarType::Type>(context.Attr<int>("out_dtype")),
+        static_cast<framework::proto::VarType::Type>(
+            context.Attr<int>("out_dtype")),
         CastOpFunctor<DeviceContext, InT>(
             in, out, context.template device_context<DeviceContext>()));
   }