diff --git a/doc/POST_INSTALL.md b/doc/POST_INSTALL.md
index 46caabd..fa4a2d9 100644
--- a/doc/POST_INSTALL.md
+++ b/doc/POST_INSTALL.md
@@ -1,6 +1,6 @@
 Please open your __APP__ domain: https://__DOMAIN____PATH_URL__
 
-The username is: __EMAIL__
+The username is the administrator's email address
 The password is the administrator one you filled during the installation
 The secret is: __API_SECRET__