lib/extensible/extension_kernel.rb in extensible-0.0.4 vs lib/extensible/extension_kernel.rb in extensible-0.0.5

@@ -1,16 +1,17 @@
 require "extensible/extension_kernel_template".freeze
+require "extensible/utils".freeze
 
 module Extensible
   ##
   # A custom ExtensionKernelTemplate clone that is extended by Extensible to make it, well, extensible.
   ExtensionKernel = ExtensionKernelTemplate.clone.module_eval do
     private
 
     def extended(submodule)
       super
 
-      unless submodule.const_defined?(:ExtensionKernel, false)
+      unless Utils.own_const_defined?(submodule, :ExtensionKernel)
         kernel = ExtensionKernelTemplate.clone
         submodule.const_set(:ExtensionKernel, kernel)
         submodule.extend kernel
       end