diff --git a/source/administration/configuration.txt b/source/administration/configuration.txt
index a0ef945eb52..0a93339d949 100644
--- a/source/administration/configuration.txt
+++ b/source/administration/configuration.txt
@@ -75,7 +75,7 @@ following explanation:
   .. note::
 
      UNIX-like systems require superuser privileges to attach processes
-     to ports lower than 1000.
+     to ports lower than 1024.
 
 - :setting:`quiet` is ``true``. This disables all but
   the most critical entries in output/log file. In normal operation