diff --git a/TeleBot/TeleBot/UI/MenuBuilder.cs b/TeleBot/TeleBot/UI/MenuBuilder.cs
index 581d955..a22d57d 100644
--- a/TeleBot/TeleBot/UI/MenuBuilder.cs
+++ b/TeleBot/TeleBot/UI/MenuBuilder.cs
@@ -337,7 +337,7 @@ namespace TeleBot.UI
             return new InlineKeyboardMarkup(buttons);
         }
         
-        public static InlineKeyboardMarkup VariantSelectionMenu(Product product, int quantity, string? multiBuyId = null, List<string>? selectedVariants = null)
+        public InlineKeyboardMarkup VariantSelectionMenu(Product product, int quantity, string? multiBuyId = null, List<string>? selectedVariants = null)
         {
             var buttons = new List<InlineKeyboardButton[]>();
             selectedVariants ??= new List<string>();