diff --git a/netpfga/minip4/testdata/gen_testdata-port1.py b/netpfga/minip4/testdata/gen_testdata-port1.py
index a8755f6..7fb63d8 100755
--- a/netpfga/minip4/testdata/gen_testdata-port1.py
+++ b/netpfga/minip4/testdata/gen_testdata-port1.py
@@ -129,7 +129,7 @@ def test_port1():
 
     # Send on nf3
     pktCnt += 1
-    applyPkt(pkt, 'nf2', pktCnt)
+    applyPkt(pkt, 'nf3', pktCnt)
 
     # Receive on nf0
     expPkt(pkt,   'nf0')