diff --git a/interface/web/mail/templates/mail_user_mailbox_edit.htm b/interface/web/mail/templates/mail_user_mailbox_edit.htm
index f4f986c19beaa49dc4e06e94447c56fc69d73eba..160bf8c78edd322c7af72d4ebe7790c204cc65fe 100644
--- a/interface/web/mail/templates/mail_user_mailbox_edit.htm
+++ b/interface/web/mail/templates/mail_user_mailbox_edit.htm
@@ -14,7 +14,7 @@
         <input type="password" id="password" name="password" value="{tmpl_var name='password'}" size="30" maxlength="255">
       </span>
       <span class="wf_oneField">
-        <label for="quota" class="wf_preField">{tmpl_var name='quota_txt'}</label>
+        <label for="quota" class="wf_preField">{tmpl_var name='quota_txt'} in MB</label>
         <input type="text" id="quota" name="quota" value="{tmpl_var name='quota'}" size="30" maxlength="255">
       </span>
       <span class="wf_oneField">