diff --git a/test-crates/protobuf-codegen-identical-test/tests/diff.rs b/test-crates/protobuf-codegen-identical-test/tests/diff.rs
index 82ea50ae7..dc400e2ad 100644
--- a/test-crates/protobuf-codegen-identical-test/tests/diff.rs
+++ b/test-crates/protobuf-codegen-identical-test/tests/diff.rs
@@ -164,10 +164,22 @@ fn normalize_descriptor(desc: &mut DescriptorProto) {
     desc.options.mut_or_insert_default();
 
     // TODO: fix these.
-    desc.options.mut_or_insert_default().mut_unknown_fields().remove(7633546);
-    desc.options.mut_or_insert_default().mut_unknown_fields().remove(7636463);
-    desc.options.mut_or_insert_default().mut_unknown_fields().remove(7636949);
-    desc.options.mut_or_insert_default().mut_unknown_fields().remove(7646756);
+    desc.options
+        .mut_or_insert_default()
+        .mut_unknown_fields()
+        .remove(7633546);
+    desc.options
+        .mut_or_insert_default()
+        .mut_unknown_fields()
+        .remove(7636463);
+    desc.options
+        .mut_or_insert_default()
+        .mut_unknown_fields()
+        .remove(7636949);
+    desc.options
+        .mut_or_insert_default()
+        .mut_unknown_fields()
+        .remove(7646756);
 
     for field in &mut desc.field {
         normalize_field(field);