diff --git a/Mage/src/main/proto/result.proto b/Mage/src/main/proto/result.proto
index 819f72d96aa..b20d1f7bd90 100644
--- a/Mage/src/main/proto/result.proto
+++ b/Mage/src/main/proto/result.proto
@@ -1,3 +1,5 @@
+syntax = "proto2";
+
 package mage.game.result;
 
 option java_outer_classname = "ResultProtos";