diff --git a/src/libstd/ffi/c_str.rs b/src/libstd/ffi/c_str.rs
index d6aa746f4cb..28f0b1fa967 100644
--- a/src/libstd/ffi/c_str.rs
+++ b/src/libstd/ffi/c_str.rs
@@ -415,8 +415,7 @@ impl CStr {
     ///
     /// unsafe {
     ///     let slice = CStr::from_ptr(my_string());
-    ///     println!("string returned: {}",
-    ///              str::from_utf8(slice.to_bytes()).unwrap());
+    ///     println!("string returned: {}", slice.to_str().unwrap());
     /// }
     /// # }
     /// ```