diff --git a/TelegramBotBase.Extensions.Serializer.Database.MSSQL/MSSQLSerializer.cs b/TelegramBotBase.Extensions.Serializer.Database.MSSQL/MSSQLSerializer.cs
index a25cbcd..4dd69bb 100644
--- a/TelegramBotBase.Extensions.Serializer.Database.MSSQL/MSSQLSerializer.cs
+++ b/TelegramBotBase.Extensions.Serializer.Database.MSSQL/MSSQLSerializer.cs
@@ -31,7 +31,7 @@ namespace TelegramBotBase.Extensions.Serializer.Database.MSSQL
 
             if (FallbackStateForm != null && !FallbackStateForm.IsSubclassOf(typeof(FormBase)))
             {
-                throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of FormBase");
+                throw new ArgumentException($"{nameof(FallbackStateForm)} is not a subclass of {nameof(FormBase)}");
             }
         }