diff --git a/lru.js b/lru.js
index d2657ee..cbc0302 100644
--- a/lru.js
+++ b/lru.js
@@ -193,7 +193,7 @@ class LRUMap {
       entry[OLDER][NEWER] = undefined;
       // link the newer entry to head
       this.newest = entry[OLDER];
-    } else {// if(entry[OLDER] === undefined && entry.newer === undefined) {
+    } else {// if(entry[OLDER] === undefined && entry[NEWER] === undefined) {
       this.oldest = this.newest = undefined;
     }