diff --git a/builds/install/misc/firebird.conf b/builds/install/misc/firebird.conf
index a8798c8b6d..f03392696f 100644
--- a/builds/install/misc/firebird.conf
+++ b/builds/install/misc/firebird.conf
@@ -803,9 +803,9 @@
 # specific network card. It enables rejection of incoming connections
 # through any other network interface. By default, connections from any
 # available network interface are allowed.
-# If you are using Classic Server, this setting is for Windows only.
-# Under Linux, BSD or macOS, with Classic server, use xinetd or launchd
-# configuration file (bind parameter).
+# If you use xinetd (or launchd, systemd, etc.) to start Classic Server
+# processes instead of the builtin listener, this setting does not apply (use
+# the appropriate parameter of the xinetd/systemd/launchd configuration).
 #
 # Type: string
 #