diff --git a/src/librustc/hir/mod.rs b/src/librustc/hir/mod.rs
index c451a789193a..5ff69a789ed5 100644
--- a/src/librustc/hir/mod.rs
+++ b/src/librustc/hir/mod.rs
@@ -840,8 +840,8 @@ pub enum UnsafeSource {
 #[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash)]
 pub struct Expr {
     pub id: NodeId,
-    pub node: Expr_,
     pub span: Span,
+    pub node: Expr_,
     pub attrs: ThinVec<Attribute>,
 }