diff --git a/app/controllers/spree/admin/products_controller.rb b/app/controllers/spree/admin/products_controller.rb
index 13700e4c39..78f26faf6e 100644
--- a/app/controllers/spree/admin/products_controller.rb
+++ b/app/controllers/spree/admin/products_controller.rb
@@ -206,7 +206,7 @@ module Spree
       end
 
       def set_stock_levels(product, on_hand, on_demand)
-        variant = product_variant(product)
+        variant = product.variants.first
 
         begin
           variant.on_demand = on_demand if on_demand.present?
@@ -226,12 +226,6 @@ module Spree
         end
       end
 
-      def product_variant(product)
-        return unless product.variants.any?
-
-        product.variants.first
-      end
-
       def set_product_master_variant_price_to_zero
         @product.price = 0 if @product.price.nil?
       end