diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index 37c6123b..50dff880 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -480,7 +480,7 @@ message PveGeminiContent
 message PveGeminiMode
 {
     optional int32 id = 1;
-    optional string mode_map = 2;
+    optional int32 map_id = 2;
     optional string mode_time = 3;
     optional string area = 4;
 }