--- trunk/scripts/est-spider	2006/08/25 11:59:04	179
+++ trunk/scripts/est-spider	2006/08/26 22:30:13	180
@@ -61,7 +61,7 @@
 my $filter;
 foreach my $f (qw/pdftotext pstotext/) {
 	my $w = which($f);
-	if ($f) {
+	if ($w) {
 		$filter->{$f} = $w;
 		print STDERR "using $f filter at $w\n" if ($verbose);
 	}