diff --git a/core/Message.proto b/core/Discover.proto
similarity index 93%
rename from core/Message.proto
rename to core/Discover.proto
index 324b91ac968..f6bf68cdc33 100644
--- a/core/Message.proto
+++ b/core/Discover.proto
@@ -4,7 +4,7 @@ package protocol;
 
 
 option java_package = "org.tron.protos"; //Specify the name of the package that generated the Java file
-option java_outer_classname = "Message"; //Specify the class name of the generated Java file
+option java_outer_classname = "Discover"; //Specify the class name of the generated Java file
 
 enum ReasonCode {
   REQUESTED = 0;