diff --git a/usr.sbin/wpa/hostapd/hostapd.conf.5 b/usr.sbin/wpa/hostapd/hostapd.conf.5
index a4608016a8e..3316627a84f 100644
--- a/usr.sbin/wpa/hostapd/hostapd.conf.5
+++ b/usr.sbin/wpa/hostapd/hostapd.conf.5
@@ -67,7 +67,8 @@ The following parameters are recognized:
 Interface name.
 Should be set in
 .Dq hostap
-mode.
+mode.  Make certain that there are no spaces after the interface name, 
+or hostapd will complain that the interface does not exist.
 .It Va debug
 Debugging mode: 0 = no, 1 = minimal, 2 = verbose, 3 = msg dumps, 4 =
 excessive.