1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_span/src/hygiene.rs b/compiler/rustc_span/src/hygiene.rs
index 8c6600c4e53..b717229b68d 100644
--- a/compiler/rustc_span/src/hygiene.rs
+++ b/compiler/rustc_span/src/hygiene.rs
@@ -60,6 +60,7 @@ pub struct SyntaxContextData {
 
 rustc_index::newtype_index! {
     /// A unique ID associated with a macro invocation and expansion.
+    #[orderable]
     pub struct ExpnIndex {}
 }
 
@@ -79,7 +80,6 @@ impl fmt::Debug for ExpnId {
 
 rustc_index::newtype_index! {
     /// A unique ID associated with a macro invocation and expansion.
-    #[no_ord_impl]
     #[debug_format = "expn{}"]
     pub struct LocalExpnId {}
 }