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-rw-r--r--src/libsyntax/feature_gate.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 3f0a402c213..5f051e2f193 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -462,7 +462,7 @@ declare_features! (
     (active, proc_macro_non_items, "1.27.0", None, None),
 
     // #[doc(alias = "...")]
-    (active, doc_alias, "1.27.0", None, None),
+    (active, doc_alias, "1.27.0", Some(50146), None),
 );
 
 declare_features! (