diff --git a/modules/arp_spoof.go b/modules/arp_spoof.go
index 4a0008af..7ef289a8 100644
--- a/modules/arp_spoof.go
+++ b/modules/arp_spoof.go
@@ -144,6 +144,9 @@ func (p *ArpSpoofer) pktRouter(eth *layers.Ethernet, ip4 *layers.IPv4, pkt gopac
 		return
 	}
 
+	// check if this packet is from or to one of the spoofing targets
+	// and therefore needs patching and forwarding.
+	doForward := false
 	for _, target := range p.addresses {
 
 		targetMAC, err := p.getMAC(target, true);