diff --git a/clippy_lints/src/default_union_representation.rs b/clippy_lints/src/default_union_representation.rs
index dec357ab75c..03b5a2d6d08 100644
--- a/clippy_lints/src/default_union_representation.rs
+++ b/clippy_lints/src/default_union_representation.rs
@@ -61,7 +61,7 @@ impl<'tcx> LateLintPass<'tcx> for DefaultUnionRepresentation {
                 None,
                 &format!(
                     "consider annotating `{}` with `#[repr(C)]` to explicitly specify memory layout",
-                    cx.tcx.def_path_str(item.owner_id.to_def_id())
+                    cx.tcx.def_path_str(item.owner_id)
                 ),
             );
         }
diff --git a/clippy_lints/src/trailing_empty_array.rs b/clippy_lints/src/trailing_empty_array.rs
index 1382c1a40da..98f5b47f7a0 100644
--- a/clippy_lints/src/trailing_empty_array.rs
+++ b/clippy_lints/src/trailing_empty_array.rs
@@ -46,7 +46,7 @@ impl<'tcx> LateLintPass<'tcx> for TrailingEmptyArray {
                 None,
                 &format!(
                     "consider annotating `{}` with `#[repr(C)]` or another `repr` attribute",
-                    cx.tcx.def_path_str(item.owner_id.to_def_id())
+                    cx.tcx.def_path_str(item.owner_id)
                 ),
             );
         }