diff --git a/lib/blockchain/chaindb.js b/lib/blockchain/chaindb.js
index 8159c5c8..5a240edb 100644
--- a/lib/blockchain/chaindb.js
+++ b/lib/blockchain/chaindb.js
@@ -2166,11 +2166,6 @@ function getSize(value) {
   return value.length + 80;
 }
 
-function BlockPair(hash, height) {
-  this.hash = hash;
-  this.height = height;
-}
-
 /*
  * Expose
  */