diff --git a/include/chat/flags.h b/include/chat/flags.h
index 21362b5..8d82eea 100644
--- a/include/chat/flags.h
+++ b/include/chat/flags.h
@@ -37,6 +37,7 @@ extern "C" {
 #define WHY2_DEFAULT_USERNAME "anon"
 
 #define WHY2_MAX_USERNAME_LENGTH 20 //MAXIMAL USERNAME LENGTH
+#define WHY2_MAX_USERNAME_TRIES 3 //MAXIMAL USERNAME ASK COUNT
 
 #ifdef __cplusplus
 }