diff --git a/lib/krb5/krb5_appdefault.3 b/lib/krb5/krb5_appdefault.3
index 71e65ede9..962fa892b 100644
--- a/lib/krb5/krb5_appdefault.3
+++ b/lib/krb5/krb5_appdefault.3
@@ -42,11 +42,14 @@ in order of descending importance.
 	}
 	option = value
 .Ed
-.Pp
-If the realm is omitted it will not be used for resolving values.  If
-no value can be found,
+.Fa appname
+is the name of the application, and
+.Fa realm
+is the realm name. If the realm is omitted it will not be used for
+resolving values. 
 .Fa def_val
-is returned instead.
+is the value to return if no value is found in
+.Xr krb5.conf 5 .
 .Sh SEE ALSO
 .Xr krb5_config 3 ,
 .Xr krb5.conf 5