diff --git a/ruby/item_processor.rb b/ruby/item_processor.rb
index a9fc3987..37ad0e5b 100644
--- a/ruby/item_processor.rb
+++ b/ruby/item_processor.rb
@@ -9,9 +9,7 @@ class ItemProcessor
 
   def update_item_quality
     if (item.name != 'Aged Brie') && (item.name != 'Backstage passes to a TAFKAL80ETC concert')
-      if item.quality > 0
-        item.quality -= 1 if item.name != 'Sulfuras, Hand of Ragnaros'
-      end
+      decrease_item_quality
     else
       if item.quality < 50
         item.quality += 1
@@ -25,9 +23,7 @@ class ItemProcessor
     if item.sell_in < 0
       if item.name != 'Aged Brie'
         if item.name != 'Backstage passes to a TAFKAL80ETC concert'
-          if item.quality > 0
-            item.quality -= 1 if item.name != 'Sulfuras, Hand of Ragnaros'
-          end
+          decrease_item_quality
         else
           item.quality = item.quality - item.quality
         end
@@ -40,4 +36,8 @@ class ItemProcessor
   def increase_item_quality
     item.quality += 1 if item.quality < 50
   end
+
+  def decrease_item_quality
+    item.quality -= 1 if item.quality > 0 && item.name != 'Sulfuras, Hand of Ragnaros'
+  end
 end