diff --git a/app/models/spree/stock/quantifier.rb b/app/models/spree/stock/quantifier.rb
index 01e9b77cb1..889f210ca3 100644
--- a/app/models/spree/stock/quantifier.rb
+++ b/app/models/spree/stock/quantifier.rb
@@ -15,7 +15,7 @@ module Spree
         # may still be in an active cart after it's deleted, so this will mark it as out of stock.
         return 0 if @variant.deleted?
 
-        stock_items.sum(&:count_on_hand)
+        stock_items.sum(:count_on_hand)
       end
 
       def backorderable?