diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs
index da1c54e88b5..c0c593ab591 100644
--- a/compiler/rustc_parse/src/parser/mod.rs
+++ b/compiler/rustc_parse/src/parser/mod.rs
@@ -873,7 +873,8 @@ impl<'a> Parser<'a> {
             id: DUMMY_NODE_ID,
             value: self.mk_expr(blk.span, ExprKind::Block(blk, None), AttrVec::new()),
         };
-        Ok(self.mk_expr(span, ExprKind::ConstBlock(anon_const), AttrVec::new()))
+        let blk_span = anon_const.value.span;
+        Ok(self.mk_expr(span.to(blk_span), ExprKind::ConstBlock(anon_const), AttrVec::new()))
     }
 
     /// Parses mutability (`mut` or nothing).