1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcollections/vec_map.rs b/src/libcollections/vec_map.rs
index 99d4e18fb87..3a7168094ff 100644
--- a/src/libcollections/vec_map.rs
+++ b/src/libcollections/vec_map.rs
@@ -448,7 +448,7 @@ impl<V> VecMap<V> {
     pub fn insert(&mut self, key: uint, value: V) -> Option<V> {
         let len = self.v.len();
         if len <= key {
-            self.v.grow_fn(key - len + 1, |_| None);
+            self.v.extend(range(0, key - len + 1).map(|_| None));
         }
         replace(&mut self.v[key], Some(value))
     }