diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index f0e0752..63b4ed9 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,15 +1,15 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config`
-# on 2024-04-12 14:06:44 UTC using RuboCop version 1.62.1.
+# on 2024-04-20 21:25:22 UTC using RuboCop version 1.62.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
 # versions of RuboCop, may require this file to be generated again.
 
-# Offense count: 13
+# Offense count: 14
 # Configuration parameters: AllowedMethods, AllowedPatterns, CountRepeatedAttributes.
 Metrics/AbcSize:
-  Max: 47
+  Max: 46
 
 # Offense count: 1
 # Configuration parameters: CountComments, CountAsOne.
@@ -19,7 +19,7 @@ Metrics/ClassLength:
 # Offense count: 9
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 Metrics/CyclomaticComplexity:
-  Max: 12
+  Max: 13
 
 # Offense count: 22
 # Configuration parameters: CountComments, CountAsOne, AllowedMethods, AllowedPatterns.
@@ -29,7 +29,7 @@ Metrics/MethodLength:
 # Offense count: 5
 # Configuration parameters: AllowedMethods, AllowedPatterns.
 Metrics/PerceivedComplexity:
-  Max: 12
+  Max: 13
 
 # Offense count: 1
 # Configuration parameters: EnforcedStyle, CheckMethodNames, CheckSymbols, AllowedIdentifiers, AllowedPatterns.
diff --git a/lib/rspec/openapi/extractors.rb b/lib/rspec/openapi/extractors.rb
index c8322ae..52c686a 100644
--- a/lib/rspec/openapi/extractors.rb
+++ b/lib/rspec/openapi/extractors.rb
@@ -2,4 +2,11 @@
 
 # Create namespace
 module RSpec::OpenAPI::Extractors
+  # @param [String, Symbol] path_parameter
+  # @return [Integer, nil]
+  def self.number_or_nil(path_parameter)
+    Integer(path_parameter.to_s || '')
+  rescue ArgumentError
+    nil
+  end
 end
diff --git a/lib/rspec/openapi/extractors/hanami.rb b/lib/rspec/openapi/extractors/hanami.rb
index 6cb0fc7..26844b2 100644
--- a/lib/rspec/openapi/extractors/hanami.rb
+++ b/lib/rspec/openapi/extractors/hanami.rb
@@ -66,7 +66,7 @@ def request_attributes(request, example)
     deprecated = metadata[:deprecated]
     path = request.path
 
-    raw_path_params = route.params.filter { |_key, value| number_or_nil(value) }
+    raw_path_params = route.params.filter { |_key, value| RSpec::OpenAPI::Extractors.number_or_nil(value) }
 
     result = InspectorAnalyzer.call(request.method, add_id(path, route))
 
@@ -92,7 +92,7 @@ def add_id(path, route)
     return path if route.params.empty?
 
     route.params.each_pair do |key, value|
-      next unless number_or_nil(value)
+      next unless RSpec::OpenAPI::Extractors.number_or_nil(value)
 
       path = path.sub("/#{value}", "/:#{key}")
     end
@@ -104,17 +104,11 @@ def add_openapi_id(path, route)
     return path if route.params.empty?
 
     route.params.each_pair do |key, value|
-      next unless number_or_nil(value)
+      next unless RSpec::OpenAPI::Extractors.number_or_nil(value)
 
       path = path.sub("/#{value}", "/{#{key}}")
     end
 
     path
   end
-
-  def number_or_nil(string)
-    Integer(string || '')
-  rescue ArgumentError
-    nil
-  end
 end
diff --git a/lib/rspec/openapi/extractors/rails.rb b/lib/rspec/openapi/extractors/rails.rb
index 5346aa0..6165505 100644
--- a/lib/rspec/openapi/extractors/rails.rb
+++ b/lib/rspec/openapi/extractors/rails.rb
@@ -65,17 +65,11 @@ def find_rails_route(request, app: Rails.application, path_prefix: '')
 
   def add_id(path, parameters)
     parameters.each_pair do |key, value|
-      next unless number_or_nil(value)
+      next unless RSpec::OpenAPI::Extractors.number_or_nil(value)
 
       path = path.sub("/#{value}", "/:#{key}")
     end
 
     path
   end
-
-  def number_or_nil(string)
-    Integer(string || '')
-  rescue ArgumentError
-    nil
-  end
 end
diff --git a/spec/apps/rails/config/routes.rb b/spec/apps/rails/config/routes.rb
index 1c6ff97..a448bbc 100644
--- a/spec/apps/rails/config/routes.rb
+++ b/spec/apps/rails/config/routes.rb
@@ -4,7 +4,9 @@
 
   get '/my_engine/test' => ->(_env) { [200, { 'Content-Type' => 'text/plain' }, ['ANOTHER TEST']] }
 
-  get '/pages' => 'pages#get'
+  defaults format: :html do
+    get '/pages' => 'pages#get'
+  end
 
   defaults format: 'json' do
     resources :tables, only: [:index, :show, :create, :update, :destroy]