diff --git a/lib/active_settings/config.rb b/lib/active_settings/config.rb
index 6b0364e..4bf0c66 100644
--- a/lib/active_settings/config.rb
+++ b/lib/active_settings/config.rb
@@ -4,6 +4,7 @@
 # See: https://github.com/rubyconfig/config/blob/master/lib/config/options.rb
 
 module ActiveSettings
+  # rubocop:disable Metrics/ClassLength
   class Config < OpenStruct
 
     def each(*args, &block)
@@ -11,6 +12,11 @@ def each(*args, &block)
     end
 
 
+    def each_key(*args, &block)
+      marshal_dump.each_key(*args, &block)
+    end
+
+
     def collect(*args, &block)
       marshal_dump.collect(*args, &block)
     end
@@ -157,4 +163,5 @@ def auto_type(val)
     # rubocop:enable Style/RescueModifier
 
   end
+  # rubocop:enable Metrics/ClassLength
 end