diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs
index 4bc7b81b3f6e..97b60e931bc6 100644
--- a/src/librustdoc/clean/mod.rs
+++ b/src/librustdoc/clean/mod.rs
@@ -975,8 +975,8 @@ impl Clean<Attributes> for [ast::Attribute] {
                 };
 
 
-                register_def(cx, def);
-                attrs.links.push((link, def.def_id()));
+                let id = register_def(cx, def);
+                attrs.links.push((link, id));
             }
 
             cx.sess().abort_if_errors();