2 files changed, 21 insertions, 0 deletions
diff --git a/lib/hashie/extensions/active_support/core_ext/hash.rb b/lib/hashie/extensions/active_support/core_ext/hash.rb
new file mode 100644
index 0000000..b8d71f7
--- /dev/null
+++ b/lib/hashie/extensions/active_support/core_ext/hash.rb
@@ -0,0 +1,14 @@
+module Hashie
+  module Extensions
+    module ActiveSupport
+      module CoreExt
+        module Hash
+          def except(*keys)
+            string_keys = keys.map { |key| convert_key(key) }
+            super(*string_keys)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/hashie/railtie.rb b/lib/hashie/railtie.rb
index 65cd007..c5f05b7 100644
--- a/lib/hashie/railtie.rb
+++ b/lib/hashie/railtie.rb
@@ -7,6 +7,13 @@ begin
       initializer 'hashie.configure_logger', after: 'initialize_logger' do
         Hashie.logger = Rails.logger
       end
+
+      initializer 'hashie.patch_hash_except', after: 'load_active_support' do
+        if Rails::VERSION::MAJOR >= 6
+          require 'hashie/extensions/active_support/core_ext/hash'
+          Hashie::Mash.send(:include, Hashie::Extensions::ActiveSupport::CoreExt::Hash)
+        end
+      end
     end
   end
 rescue LoadError => e