diff -Nur qpsmtpd-0.96/plugins/karma qpsmtpd-0.96_bz9462/plugins/karma
--- qpsmtpd-0.96/plugins/karma	2016-05-09 23:56:51.145450697 +0200
+++ qpsmtpd-0.96_bz9462/plugins/karma	2016-05-09 23:57:34.484446254 +0200
@@ -449,7 +449,7 @@
     my $history = ($nice || 0) - $naughty;
     my $log_mess = '';
 
-    if ($karma <= $self->{_args}{strikes}) {    # Enough negative strikes ?
+    if ($karma <= -$self->{_args}{strikes}) {    # Enough negative strikes ?
         $history--;
         my $negative_limit = 0 - $self->{_args}{negative};
         if ($history <= $negative_limit) {