diff --git a/clippy_lints/src/missing_inline.rs b/clippy_lints/src/missing_inline.rs
index 0d953299189..9e14ccd3433 100644
--- a/clippy_lints/src/missing_inline.rs
+++ b/clippy_lints/src/missing_inline.rs
@@ -105,7 +105,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline {
                     match tit_.kind {
                         hir::TraitItemKind::Const(..) | hir::TraitItemKind::Type(..) => {},
                         hir::TraitItemKind::Fn(..) => {
-                            if tit.defaultness.has_value() {
+                            if cx.tcx.impl_defaultness(tit.id.def_id).has_value() {
                                 // trait method with default body needs inline in case
                                 // an impl is not provided
                                 let desc = "a default trait method";