1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc/ty/item_path.rs b/src/librustc/ty/item_path.rs
index 8ddd8bef36a..5e4e7b342d6 100644
--- a/src/librustc/ty/item_path.rs
+++ b/src/librustc/ty/item_path.rs
@@ -305,7 +305,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
     /// Returns the def-id of `def_id`'s parent in the def tree. If
     /// this returns `None`, then `def_id` represents a crate root or
     /// inlined root.
-    fn parent_def_id(&self, def_id: DefId) -> Option<DefId> {
+    pub fn parent_def_id(&self, def_id: DefId) -> Option<DefId> {
         let key = self.def_key(def_id);
         key.parent.map(|index| DefId { krate: def_id.krate, index: index })
     }