diff --git a/src/libcollections/vec.rs b/src/libcollections/vec.rs
index d028be50ee1796c4cb825c29f07241b1492fe4fb..751775888b7590fee4f9ed3edec0d0074dd38035 100644
--- a/src/libcollections/vec.rs
+++ b/src/libcollections/vec.rs
@@ -120,7 +120,7 @@ pub fn new() -> Vec<T> {
     /// assert_eq!(vec.len(), 0);
     ///
     /// // These are all done without reallocating...
-    /// for i in range(0u, 10) {
+    /// for i in range(0i, 10) {
     ///     vec.push(i);
     /// }
     ///