Remove explicit syntax highlight from docs.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 748eb9dcb2f..8befb0579c3 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -94,7 +94,7 @@ use heap::deallocate;
 /// With simple pipes, without `Arc`, a copy would have to be made for each
 /// task.
 ///
-/// ```rust
+/// ```
 /// use std::sync::Arc;
 /// use std::thread;
 ///
diff --git a/src/liballoc/boxed.rs b/src/liballoc/boxed.rs
index 6d865d2bffa..451237d7596 100644
--- a/src/liballoc/boxed.rs
+++ b/src/liballoc/boxed.rs
@@ -64,7 +64,7 @@ use core::raw::TraitObject;
 ///
 /// The following two examples are equivalent:
 ///
-/// ```rust
+/// ```
 /// #![feature(box_syntax)]
 /// use std::boxed::HEAP;
 ///