diff --git a/src/map/map.cpp b/src/map/map.cpp
index eff2ee2649..3baa0aa80f 100644
--- a/src/map/map.cpp
+++ b/src/map/map.cpp
@@ -2760,10 +2760,7 @@ int map_delinstancemap(int m)
 	aFree(mapdata->block);
 	aFree(mapdata->block_mob);
 	map_free_questinfo(m);
-	mapdata->flag.clear();
-	mapdata->drop_list.clear();
 	mapdata->damage_adjust = {};
-	mapdata->skill_damage.clear();
 
 	mapindex_removemap( mapdata->index );
 	map_removemapdb(mapdata);