diff --git a/spec/rubocop/cli/auto_gen_config_spec.rb b/spec/rubocop/cli/auto_gen_config_spec.rb
index de5ba8238b0..78bb5b2659d 100644
--- a/spec/rubocop/cli/auto_gen_config_spec.rb
+++ b/spec/rubocop/cli/auto_gen_config_spec.rb
@@ -8,7 +8,10 @@
   include_context 'cli spec behavior'
 
   describe '--auto-gen-config' do
-    before { RuboCop::Formatter::DisabledConfigFormatter.config_to_allow_offenses = {} }
+    before do
+      RuboCop::Formatter::DisabledConfigFormatter.config_to_allow_offenses = {}
+      RuboCop::Formatter::DisabledConfigFormatter.detected_styles = {}
+    end
 
     shared_examples 'LineLength handling' do |ctx, initial_dotfile, exp_dotfile|
       context ctx do
@@ -446,11 +449,10 @@ def fooBar; end
         todo_contents = File.read('.rubocop_todo.yml').lines[8..-1].join
         expect(todo_contents).to eq(<<~YAML)
           # Offense count: 1
-          # Configuration parameters: EnforcedStyle, IgnoredPatterns.
+          # Configuration parameters: IgnoredPatterns.
           # SupportedStyles: snake_case, camelCase
           Naming/MethodName:
-            Exclude:
-              - 'example1.rb'
+            EnforcedStyle: camelCase
 
           # Offense count: 1
           # Cop supports --auto-correct.