diff --git a/protos/MessageTypeProto.proto b/protos/MessageTypeProto.proto
index 6f0d8b9..25edfea 100644
--- a/protos/MessageTypeProto.proto
+++ b/protos/MessageTypeProto.proto
@@ -19,6 +19,7 @@ enum MessageType{
     DRAW_HERO_REQUEST   = 10300; //
     DRAW_HERO_RESPONSE  = 10301;
 // E 10400
+    ERROR_CODE_INDICATION = 10400;
 // F 10500
     FIGHT_START_REQUEST   = 10500; //
     FIGHT_START_RESPONSE  = 10501;