diff --git a/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs b/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs
index b1d98a48057..b437d4c5c2e 100644
--- a/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs
+++ b/compiler/rustc_typeck/src/check/fn_ctxt/_impl.rs
@@ -816,6 +816,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 hir::LangItem::TryTraitFromOutput
                 | hir::LangItem::TryTraitFromResidual
                 | hir::LangItem::TryTraitBranch => ObligationCauseCode::QuestionMark,
+                _ => traits::ItemObligation(def_id),
             },
         );
         (Res::Def(def_kind, def_id), ty)