diff --git a/paddle/operators/prelu_op.cc b/paddle/operators/prelu_op.cc
index 911df8ba6728399765d3b467ef00825d10e401f9..7ae80b296850f2f433c89d904ebf32355b2a29c7 100644
--- a/paddle/operators/prelu_op.cc
+++ b/paddle/operators/prelu_op.cc
@@ -46,8 +46,8 @@ class PReluOpMaker : public framework::OpProtoAndCheckerMaker {
   PReluOpMaker(framework::OpProto *proto, framework::OpAttrChecker *op_checker)
       : OpProtoAndCheckerMaker(proto, op_checker) {
     AddInput("X", "The input tensor of prelu operator.");
-    AddInput("Alpha", "The alpha weight of prelu operator.");
-    AddOutput("Out", "The output tensor of prelu operator.");
+    AddInput("Alpha", "The alpha weight of PRelu operator.");
+    AddOutput("Out", "The output tensor of PRelu operator.");
     AddComment(R"DOC(PRelu operator
 
 The equation is: