diff --git a/util/hash_linklist_rep.cc b/util/hash_linklist_rep.cc
index 506f1d8b4..80edad505 100644
--- a/util/hash_linklist_rep.cc
+++ b/util/hash_linklist_rep.cc
@@ -259,7 +259,6 @@ class HashLinkListRep : public MemTableRep {
     const HashLinkListRep* const hash_link_list_rep_;
     Node* head_;
     Node* node_;
-    std::string tmp_;       // For passing to EncodeKey
 
     virtual void SeekToHead() {
       node_ = head_;