diff --git a/src/algorithm/sort/heap_select.rs b/src/algorithm/sort/heap_select.rs
index 7c3d534..6c13b9b 100644
--- a/src/algorithm/sort/heap_select.rs
+++ b/src/algorithm/sort/heap_select.rs
@@ -41,6 +41,7 @@ impl<'a, T: PartialOrd> HeapSelect<T> {
         }
     }
 
+    #[allow(dead_code)]
     pub fn peek(&self) -> &T {
         return &self.heap[0];
     }