diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs
index a8d85fb6fb4..b28019e3f91 100644
--- a/src/librustdoc/html/markdown.rs
+++ b/src/librustdoc/html/markdown.rs
@@ -1609,6 +1609,7 @@ fn init_id_map() -> FxHashMap<Cow<'static, str>, usize> {
     map.insert("blanket-implementations-list".into(), 1);
     map.insert("deref-methods".into(), 1);
     map.insert("layout".into(), 1);
+    map.insert("aliased-type".into(), 1);
     map
 }