diff --git a/include/chat/flags.h b/include/chat/flags.h
index 7afa768..46458b3 100644
--- a/include/chat/flags.h
+++ b/include/chat/flags.h
@@ -25,6 +25,13 @@ extern "C" {
 
 #include <why2/flags.h>
 
+//ENUMS
+enum WHY2_CHAT_SERVER_TYPE //TYPE OF SERVER
+{
+    WHY2_CHAT_SERVER, //CLASSIC COMMUNICATION SERVER
+    WHY2_CHAT_AUTHORITY //CA
+};
+
 //MACROS
 #define WHY2_CHAT_SERVER_PORT 1204 //PORT FOR SERVER
 #define WHY2_CHAT_AUTHORITY_PORT 1203 //PORT FOR CA