lib/usable.rb in usable-2.1.1 vs lib/usable.rb in usable-2.1.2

@@ -66,11 +66,11 @@
       end
     end
     [scope, usables].each { |x| options.each { |k, v| x[k] = v } }
     [scope, usables].each { |x| x.instance_eval &block } if block_given?
     ModExtender.new(mod, usable_options).call self
-    send :include, mod.const_get(:InstanceMethods) if const_defined? :InstanceMethods
-    send :extend, mod.const_get(:ClassMethods) if const_defined? :ClassMethods
+    send :include, mod.const_get(:InstanceMethods) if mod.const_defined?(:InstanceMethods)
+    send :extend, mod.const_get(:ClassMethods) if mod.const_defined?(:ClassMethods)
     self
   end
 
   # @return [Method] bound to the given -context-
   def usable_method(context, method_name)