diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs
index 9d8a71250f88a..b06534c9c1ec9 100644
--- a/src/libcore/iter/iterator.rs
+++ b/src/libcore/iter/iterator.rs
@@ -1062,8 +1062,8 @@ pub trait Iterator {
     /// assert_eq!(merged, "alphabetagamma");
     /// ```
     ///
-    /// You can also rewrite this in terms of [`flat_map()`] which is preferable
-    /// in this case since that conveys intent clearer:
+    /// You can also rewrite this in terms of [`flat_map()`], which is preferable
+    /// in this case since it conveys intent more clearly:
     ///
     /// ```
     /// let words = ["alpha", "beta", "gamma"];