--- a/SI/tools.pm	Sat Jan 16 23:53:50 2010 +0100
+++ b/SI/tools.pm	Sun Jan 17 00:03:04 2010 +0100
@@ -8,7 +8,7 @@
 
 sub run(@) {
 	system(@_);
-	die "$_[0] failed with exit code " . $? >> 8 . "\n"
+	die "$_[0] failed with exit code " . ($? >> 8) . "\n"
 	if $?;
 }