diff --git src/sshguard.in src/sshguard.in
index 40c864b..249ddb5 100644
--- src/sshguard.in
+++ src/sshguard.in
@@ -85,4 +85,4 @@ elif [ -z "$tailcmd" ]; then
 fi
 
 eval $tailcmd | $libexec/sshg-parser | \
-    $libexec/sshg-blocker $flags | ($BACKEND; kill -PIPE $$)
+    $libexec/sshg-blocker $flags | ($BACKEND ; pkill -PIPE -P $$)