diff --git a/multistrap b/multistrap
index 9a69ee7..c3da2fe 100755
--- a/multistrap
+++ b/multistrap
@@ -84,6 +84,7 @@ while( @ARGV ) {
 $msg = sprintf (_g("Need a configuration file - use %s -f\n"), $progname);
 die ($msg)
 	if (not defined $file);
+undef ($msg);
 
 $cachedir = "var/cache/apt/"; # archives
 $libdir = "var/lib/apt/";     # lists