1 files changed, 2 insertions, 1 deletions
diff --git a/src/tools/clippy/clippy_lints/src/inherent_impl.rs b/src/tools/clippy/clippy_lints/src/inherent_impl.rs
index e9b2e31a7..7c41699f3 100644
--- a/src/tools/clippy/clippy_lints/src/inherent_impl.rs
+++ b/src/tools/clippy/clippy_lints/src/inherent_impl.rs
@@ -66,7 +66,8 @@ impl<'tcx> LateLintPass<'tcx> for MultipleInherentImpl {
             )
         }) {
             for impl_id in impl_ids.iter().map(|id| id.expect_local()) {
-                match type_map.entry(cx.tcx.type_of(impl_id)) {
+                let impl_ty = cx.tcx.type_of(impl_id).subst_identity();
+                match type_map.entry(impl_ty) {
                     Entry::Vacant(e) => {
                         // Store the id for the first impl block of this type. The span is retrieved lazily.
                         e.insert(IdOrSpan::Id(impl_id));