diff --git a/server/gameserver/mapcollider.cc b/server/gameserver/mapcollider.cc
index b2db04c7..f394f21b 100644
--- a/server/gameserver/mapcollider.cc
+++ b/server/gameserver/mapcollider.cc
@@ -90,7 +90,7 @@ namespace mc
                 switch (collider_union_xobj->At("type")->AsXValue().GetInt()) {
                 case kBoxCollider:
                     {
-                        std::shared_ptr<Collider> c = std::make_shared<BoxCollider>();
+                        auto c = std::make_shared<BoxCollider>();
                         c->type = kBoxCollider;
                         c->Read(collider_union_xobj->At("box"));
                         colliders.push_back(c);
@@ -98,7 +98,7 @@ namespace mc
                     break;
                 case kMeshCollider:
                     {
-                        std::shared_ptr<Collider> c = std::make_shared<MeshCollider>();
+                        auto c = std::make_shared<MeshCollider>();
                         c->type = kMeshCollider;
                         c->Read(collider_union_xobj->At("mesh"));
                         colliders.push_back(c);
@@ -115,7 +115,7 @@ namespace mc
         {
             auto childs_arr = xobj->At("childs");
             for (int i = 0; i < childs_arr->Size(); ++i) {
-                std::shared_ptr<ColliderNode> node = std::make_shared<ColliderNode>();
+                auto node = std::make_shared<ColliderNode>();
                 node->parent = this;
                 node->Read(childs_arr->At(i));
                 if (childs.find(node->name) != childs.end()) {
diff --git a/server/gameserver/mapinstance.cc b/server/gameserver/mapinstance.cc
index 4e116afc..b780997c 100644
--- a/server/gameserver/mapinstance.cc
+++ b/server/gameserver/mapinstance.cc
@@ -930,7 +930,7 @@ void MapInstance::LoadHouse()
                                 }//end for i
                             } else if (c->type == mc::kBoxCollider) {
                                 mc::BoxCollider* box_collider = (mc::BoxCollider*)c.get();
-#if 0
+                                #if 0
                                 if (node->name == "Wall2_1 (18)") {
                                     printf("node->name %s %f,%f,%f %f,%f,%f\n",
                                            node->name.c_str(),
diff --git a/server/gameserver/mt/Map.h b/server/gameserver/mt/Map.h
index c40bad77..06a3597c 100644
--- a/server/gameserver/mt/Map.h
+++ b/server/gameserver/mt/Map.h
@@ -36,7 +36,7 @@ namespace mt
         std::vector<std::shared_ptr<WorldObject>> _world_objects;
         std::shared_ptr<MapCollider> collider_info;
         std::map<int, std::vector<std::shared_ptr<WorldObject>>> _group_world_objects;
-        MapCollider* collider_info = nullptr;
+        std::shared_ptr<MapCollider> collider_info = nullptr;
         std::vector<std::tuple<std::shared_ptr<WorldObject>, int>> moba_born_points;
         std::vector<std::vector<std::tuple<std::shared_ptr<WorldObject>, int>>> moba_path_points;
 
diff --git a/server/gameserver/mt/MapCollider.cc b/server/gameserver/mt/MapCollider.cc
index 587fa3e3..16525608 100644
--- a/server/gameserver/mt/MapCollider.cc
+++ b/server/gameserver/mt/MapCollider.cc
@@ -49,7 +49,7 @@ namespace mt
         auto xobj_nodes = xobj_root.At("nodes");
         for (int i = 0; i < xobj_nodes->Size(); ++i) {
             auto xobj_node = xobj_nodes->At(i);
-            std::shared_ptr<mc::ColliderNode> node = std::make_shared<mc::ColliderNode>();
+            auto node = std::make_shared<mc::ColliderNode>();
             node->Read(xobj_node);
             if (nodes_.find(node->name) != nodes_.end()) {
                 abort();
@@ -82,13 +82,13 @@ namespace mt
             abort();
         }
         const std::string terrain_name = "_terrain_";
-        std::shared_ptr<mc::ColliderNode> node = std::make_shared<mc::ColliderNode>();
+        auto node = std::make_shared<mc::ColliderNode>();
         node->name = terrain_name;
         if (nodes_.find(node->name) != nodes_.end()) {
             abort();
         }
         {
-            std::shared_ptr<mc::MeshCollider> mesh = std::make_shared<mc::MeshCollider>();
+            auto mesh = std::make_shared<mc::MeshCollider>();
             mesh->type = mc::kMeshCollider;
             mesh->ca_type = mc::kCA_Surface;
             mesh->mesh.vertices.reserve(verts_pb.vectors().size());