diff --git a/app/js/locales/en-us.json b/app/js/locales/en-us.json
index 10dcfa9b..5611d838 100644
--- a/app/js/locales/en-us.json
+++ b/app/js/locales/en-us.json
@@ -59,7 +59,7 @@
 
 	"username_edit_modal_title": "Change username",
 	"username_edit_placeholder": "Username",
-	"username_edit_description_md": "Set username to ...",
+	"username_edit_description_md": "Username lets other people find you and have a chat in\n**Telegram** without exposing your phone number.\n\nYou can only use symbols like a-z and 0-9.",
 	"username_edit_submit": "Save",
 	"username_edit_submit_active": "Saving...",