diff --git a/server/gameserver/metamgr.cc b/server/gameserver/metamgr.cc
index 66517b3..ddb4689 100755
--- a/server/gameserver/metamgr.cc
+++ b/server/gameserver/metamgr.cc
@@ -457,14 +457,14 @@ private:
                             f8::ReadJsonMetaFile(res_path + std::get<0>(tuple) + ".json", itr->second);
                         }
                         {
-                            auto itr = layer_meta_hash.find(std::get<0>(tuple));
+                            auto itr = layer_meta_hash.find(meta.map_pic());
                             if (itr == layer_meta_hash.end()) {
-                                layer_meta_hash[std::get<0>(tuple)] = std::list<metatable::MapLayerJson>();
-                                itr = layer_meta_hash.find(std::get<0>(tuple));
+                                layer_meta_hash[meta.map_pic()] = std::list<metatable::MapLayerJson>();
+                                itr = layer_meta_hash.find(meta.map_pic());
                             } else {
                                 itr->second.clear();
                             }
-                            f8::ReadJsonMetaFile(res_path + std::get<0>(tuple) + ".layers.json", itr->second);
+                            f8::ReadJsonMetaFile(res_path + meta.map_pic() + ".layers.json", itr->second);
                         }
                     }
                 }
diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index 208b4cd..b65722e 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -33,6 +33,7 @@ message Map
     optional int32 map_mode = 10;
     optional int32 safearea = 11;
     optional string game_start_buff_list = 12;
+    optional string map_pic  = 13;
 }
 
 message MapThing