diff --git a/src/libcollections/fmt.rs b/src/libcollections/fmt.rs
index b7cbfb60ec4..428ed319ce9 100644
--- a/src/libcollections/fmt.rs
+++ b/src/libcollections/fmt.rs
@@ -165,9 +165,9 @@
 //! provides some helper methods.
 //!
 //! Additionally, the return value of this function is `fmt::Result` which is a
-//! typedef to `Result<(), std::io::Error>` (also known as `std::io::Result<()>`).
-//! Formatting implementations should ensure that they return errors from `write!`
-//! correctly (propagating errors upward).
+//! typedef to `Result<(), std::fmt::Error>`. Formatting implementations should
+//! ensure that they return errors from `write!` correctly (propagating errors
+//! upward).
 //!
 //! An example of implementing the formatting traits would look
 //! like: