diff --git a/lib/numbers_and_words/helper_classes/figures_array.rb b/lib/numbers_and_words/helper_classes/figures_array.rb
index cc8227b..9eb0a20 100644
--- a/lib/numbers_and_words/helper_classes/figures_array.rb
+++ b/lib/numbers_and_words/helper_classes/figures_array.rb
@@ -4,7 +4,7 @@
 
 module NumbersAndWords
   class FiguresArray < Array
-    Array.include ArrayExtensions::Helpers
+    include ArrayExtensions::Helpers
 
     def to_words(options = {})
       local_language { Strategies.figures_converter.new(self, options).run }
@@ -14,6 +14,10 @@ def reverse
       super.to_figures
     end
 
+    def figures_array_in_capacity(capacity)
+      super.to_figures
+    end
+
     def local_language(&block)
       ::I18n.with_locale(I18n.local_language, &block)
     end