diff --git a/src/librustc/hir/mod.rs b/src/librustc/hir/mod.rs
index 39e17434fa1ed9c79cb57858d95a9b5ed0ca4f05..c90fb0561527948681eaaab6872009a48a546f91 100644
--- a/src/librustc/hir/mod.rs
+++ b/src/librustc/hir/mod.rs
@@ -1023,7 +1023,7 @@ pub enum Expr_ {
     /// A closure (for example, `move |a, b, c| {a + b + c}`).
     ///
     /// The final span is the span of the argument block `|...|`
-    /// 
+    ///
     /// This may also be a generator literal, in that case there is an GeneratorClause.
     ExprClosure(CaptureClause, P<FnDecl>, BodyId, Span, Option<GeneratorClause>),
     /// A block (`{ ... }`)