diff --git a/server/gameserver/navmeshbuilder.cc b/server/gameserver/navmeshbuilder.cc
index 9d6e7b7..d038c28 100644
--- a/server/gameserver/navmeshbuilder.cc
+++ b/server/gameserver/navmeshbuilder.cc
@@ -471,7 +471,7 @@ void NavMeshBuilder::BuildMapObstalce(BuilderParams& builder_params)
 
 void NavMeshBuilder::Save(BuilderParams& builder_params)
 {
-    FILE* fp = fopen("map.bin", "wb");
+    FILE* fp = fopen("all_tiles_tilecache.bin", "wb");
     if (!fp) {
         abort();
     }