diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 3f0a402c2133..5f051e2f1931 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! (
diff --git a/src/test/ui/feature-gate-doc_alias.stderr b/src/test/ui/feature-gate-doc_alias.stderr
index 693dc0a4000d..a987e03c0aaf 100644
--- a/src/test/ui/feature-gate-doc_alias.stderr
+++ b/src/test/ui/feature-gate-doc_alias.stderr
@@ -1,4 +1,4 @@
-error[E0658]: #[doc(alias = "...")] is experimental
+error[E0658]: #[doc(alias = "...")] is experimental (see issue #50146)
   --> $DIR/feature-gate-doc_alias.rs:11:1
    |
 LL | #[doc(alias = "foo")] //~ ERROR: #[doc(alias = "...")] is experimental