diff --git a/obj.go b/obj.go
index 232a737..2ac74b7 100644
--- a/obj.go
+++ b/obj.go
@@ -981,13 +981,19 @@ func loadObjItem2() error {
 			log.Printf("loadObjItem2 : %s : orphaned item in database (id : %d)\n", intl_id, id)
 		} else {
 			obj.ObjID64 = id
+
+			delete(cacheObjItem, intl_id)
 			cacheObjItem[intl_id] = obj
+
 			for _, n := range obj.Names {
+				delete(cacheObjItem, n)
 				cacheObjItem[n] = obj
 			}
+
 			if weight != obj.Weight {
 				log.Printf("loadObjItem2 : %s : weight changed : %d => %d\n", weight, obj.Weight)
 			}
+
 			cacheObjItemId[id] = obj
 		}
 	}
@@ -1020,10 +1026,12 @@ func loadObjItem2() error {
 			count := 0
 			for _, n := range i.Names {
 				if count == 0 {
-					cacheObjItemId[id] = i
+					delete(cacheObjItem, n)
+					cacheObjItem[n] = i
 					continue
 				} else {
 					objAddName(id, n)
+					delete(cacheObjItem, n)
 					cacheObjItem[n] = i
 				}
 			}
@@ -1035,7 +1043,7 @@ func loadObjItem2() error {
 	for _, v := range cacheObjItemId {
 		log.Printf("Item cached : %d\n", v.ObjID64)
 		for _, n := range v.Names {
-			log.Printf("cacheObjItemId[%d] : %s : %s.\n", v.ObjID64, v.Names[0], n)
+			log.Printf("cacheObjItemId[%d] : %s : %s.\n", v.ObjID64, n)
 		}
 	}