diff --git a/src/etc/inc/plugins.inc.d/dpinger.inc b/src/etc/inc/plugins.inc.d/dpinger.inc
index 950ff784b..a8f90a017 100644
--- a/src/etc/inc/plugins.inc.d/dpinger.inc
+++ b/src/etc/inc/plugins.inc.d/dpinger.inc
@@ -150,7 +150,7 @@ function dpinger_configure_do($verbose = false, $gwname = null, $bootup = false)
         if (!empty($gwname) && $running_gwname != $gwname) {
             continue;
         }
-        if (isvalidpid($pidfile)) {
+        if (isvalidpid($proc['pidfile'])) {
             killbypid($proc['pidfile']);
         }
     }