diff --git a/TelegramBotBase.SourceGenerators/TelegramDeviceExtensionGenerator.cs b/TelegramBotBase.SourceGenerators/TelegramDeviceExtensionGenerator.cs
index 0ca18b4..6bf2381 100644
--- a/TelegramBotBase.SourceGenerators/TelegramDeviceExtensionGenerator.cs
+++ b/TelegramBotBase.SourceGenerators/TelegramDeviceExtensionGenerator.cs
@@ -19,7 +19,7 @@ namespace TelegramBotBase
     [Generator(LanguageNames.CSharp)]
     public class TelegramDeviceExtensionGenerator : IIncrementalGenerator
     {
-        XmlDocumentationLoader xml;
+        static XmlDocumentationLoader xml;
 
 
         public void Initialize(IncrementalGeneratorInitializationContext context)