diff --git a/railties/lib/rails/generators/rails/app/app_generator.rb b/railties/lib/rails/generators/rails/app/app_generator.rb
index ea3968bf3914b..e07c2243d69aa 100644
--- a/railties/lib/rails/generators/rails/app/app_generator.rb
+++ b/railties/lib/rails/generators/rails/app/app_generator.rb
@@ -125,6 +125,7 @@ def config_when_updating
       rack_cors_config_exist         = File.exist?("config/initializers/cors.rb")
       assets_config_exist            = File.exist?("config/initializers/assets.rb")
       csp_config_exist               = File.exist?("config/initializers/content_security_policy.rb")
+      feature_policy_config_exist    = File.exist?("config/initializers/feature_policy.rb")
 
       @config_target_version = Rails.application.config.loaded_config_version || "5.0"
 
@@ -158,6 +159,10 @@ def config_when_updating
         unless csp_config_exist
           remove_file "config/initializers/content_security_policy.rb"
         end
+
+        unless feature_policy_config_exist
+          remove_file "config/initializers/feature_policy.rb"
+        end
       end
     end
 
@@ -459,6 +464,7 @@ def delete_non_api_initializers_if_api_option
         if options[:api]
           remove_file "config/initializers/cookies_serializer.rb"
           remove_file "config/initializers/content_security_policy.rb"
+          remove_file "config/initializers/feature_policy.rb"
         end
       end
 
diff --git a/railties/test/generators/api_app_generator_test.rb b/railties/test/generators/api_app_generator_test.rb
index 099bad8fb9357..e6c9947cde35b 100644
--- a/railties/test/generators/api_app_generator_test.rb
+++ b/railties/test/generators/api_app_generator_test.rb
@@ -96,6 +96,7 @@ def test_app_update_does_not_generate_unnecessary_config_files
     assert_no_file "config/initializers/cookies_serializer.rb"
     assert_no_file "config/initializers/assets.rb"
     assert_no_file "config/initializers/content_security_policy.rb"
+    assert_no_file "config/initializers/feature_policy.rb"
   end
 
   def test_app_update_does_not_generate_unnecessary_bin_files
@@ -171,6 +172,7 @@ def skipped_files
          config/initializers/assets.rb
          config/initializers/cookies_serializer.rb
          config/initializers/content_security_policy.rb
+         config/initializers/feature_policy.rb
          lib/assets
          test/helpers
          tmp/cache/assets