diff --git a/proto/src/main/proto/map.proto b/proto/src/main/proto/map.proto
index 968aded5..7cade0df 100644
--- a/proto/src/main/proto/map.proto
+++ b/proto/src/main/proto/map.proto
@@ -41,6 +41,7 @@ message AutoTileLayer {
 message ObjectLayer {
   repeated PassageAbility passageMap = 1;
   repeated MapObject objects = 2;
+  required string javaImports = 3;
 }
 
 enum PassageAbility {