diff --git a/src/Data/Heap.hs b/src/Data/Heap.hs
index 16c97a5..77bddd7 100644
--- a/src/Data/Heap.hs
+++ b/src/Data/Heap.hs
@@ -12,7 +12,6 @@ module Data.Heap
     , hLookup
     , hLookupUnsafe
     , addresses
-    , hSize
     , hView
     , hViewUnsafe
     , mapWithAddress