diff -Nur Unix-ConfigFile-0.06.old/AliasFile.pm Unix-ConfigFile-0.06/AliasFile.pm
--- Unix-ConfigFile-0.06.old/AliasFile.pm	2000-05-02 11:50:43.000000000 -0400
+++ Unix-ConfigFile-0.06/AliasFile.pm	2024-03-11 16:12:49.412000000 -0400
@@ -213,7 +213,7 @@
 	}
 	my $name = $1;
 	my @users = $this->alias($name);
-	next if !defined @users;
+	next if !@users;
 	print $fh $this->joinwrap(80, "$name: ", "\t", ",", ",", @users), "\n"
 		or return 0;
     }