diff --git a/clippy_lints/src/stable_sort_primitive.rs b/clippy_lints/src/stable_sort_primitive.rs
index c08cc9f42419..ec578ffdfacc 100644
--- a/clippy_lints/src/stable_sort_primitive.rs
+++ b/clippy_lints/src/stable_sort_primitive.rs
@@ -106,8 +106,14 @@ fn is_slice_of_primitives(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
     let expr_type = cx.tables().expr_ty_adjusted(expr);
     match expr_type.kind {
         ty::Slice(ref element_type)
-            | ty::Ref(_, ty::TyS { kind: ty::Slice(ref element_type), .. }, _)
-          => is_primitive_type(element_type),
+        | ty::Ref(
+            _,
+            ty::TyS {
+                kind: ty::Slice(ref element_type),
+                ..
+            },
+            _,
+        ) => is_primitive_type(element_type),
         _ => false,
     }
 }