diff --git a/lib/src/builder.dart b/lib/src/builder.dart
index 3aa2d536..db94c49a 100644
--- a/lib/src/builder.dart
+++ b/lib/src/builder.dart
@@ -1270,9 +1270,7 @@ class _MockClassInfo {
           '/// See the documentation for Mockito\'s code generation '
           'for more information.',
         );
-      if (classIsImmutable) {
-        cBuilder.docs.add('// ignore: must_be_immutable');
-      }
+
       // For each type parameter on [classToMock], the Mock class needs a type
       // parameter with same type variables, and a mirrored type argument for
       // the "implements" clause.
diff --git a/test/builder/auto_mocks_test.dart b/test/builder/auto_mocks_test.dart
index de82ffec..88bf5baa 100644
--- a/test/builder/auto_mocks_test.dart
+++ b/test/builder/auto_mocks_test.dart
@@ -3784,20 +3784,6 @@ void main() {
     );
   });
 
-  test('adds ignore: must_be_immutable analyzer comment if mocked class is '
-      'immutable', () async {
-    await expectSingleNonNullableOutput(
-      dedent(r'''
-      import 'package:meta/meta.dart';
-      @immutable
-      class Foo {
-        void foo();
-      }
-      '''),
-      _containsAllOf('// ignore: must_be_immutable\nclass MockFoo'),
-    );
-  });
-
   group('typedef mocks', () {
     group('are generated properly', () {
       test('when aliased type parameters are instantiated', () async {