--- src/sshguard.in.orig	2018-07-08 18:07:01 UTC
+++ src/sshguard.in
@@ -96,4 +96,4 @@ elif [ -z "$tailcmd" ]; then
 fi
 
 eval $tailcmd | $libexec/sshg-parser | \
-    $libexec/sshg-blocker $flags | ($BACKEND; kill -PIPE $$)
+    $libexec/sshg-blocker $flags | ($BACKEND ; pkill -PIPE -P $$)