diff --git a/server/gameserver/navmeshbuilder.cc b/server/gameserver/navmeshbuilder.cc
index 28547fc..9b4f5a3 100644
--- a/server/gameserver/navmeshbuilder.cc
+++ b/server/gameserver/navmeshbuilder.cc
@@ -388,6 +388,17 @@ void NavMeshBuilder::BuildMapObstalce(BuilderParams& builder_params)
                     if (status != DT_SUCCESS) {
                         abort();
                     }
+                    {
+                        bool uptodate = false;
+                        int update_count = 0;
+                        while (!uptodate) {
+                            tile_cache->update(0, builder_params.navmesh, &uptodate);
+                            ++update_count;
+                            if (update_count > 10000 * 10) {
+                                abort();
+                            }
+                        }
+                    }
                 }
                 break;
             case CT_Circle:
@@ -408,6 +419,17 @@ void NavMeshBuilder::BuildMapObstalce(BuilderParams& builder_params)
                     if (status != DT_SUCCESS) {
                         abort();
                     }
+                    {
+                        bool uptodate = false;
+                        int update_count = 0;
+                        while (!uptodate) {
+                            tile_cache->update(0, builder_params.navmesh, &uptodate);
+                            ++update_count;
+                            if (update_count > 10000 * 10) {
+                                abort();
+                            }
+                        }
+                    }
                 }
                 break;
             default:
@@ -416,5 +438,5 @@ void NavMeshBuilder::BuildMapObstalce(BuilderParams& builder_params)
                 break;
             }
         }
-    }
+    }//end for pair
 }