diff --git a/mesh_bot.py b/mesh_bot.py
index 7c53278..292a9a0 100755
--- a/mesh_bot.py
+++ b/mesh_bot.py
@@ -147,6 +147,10 @@ def onReceive(packet, interface):
     rxInterface = interface.__dict__.get('devPath')
     if rxInterface == port1:
         rxNode = 1
+    elif rxInterface == port2:
+        rxNode = 2
+    else:
+        rxNode = 0
 
     # receive a packet and process it, main instruction loop