diff --git a/netpfga/minip4/testdata/gen_testdata.py b/netpfga/minip4/testdata/gen_testdata.py
index 82f040f..6abe156 100755
--- a/netpfga/minip4/testdata/gen_testdata.py
+++ b/netpfga/minip4/testdata/gen_testdata.py
@@ -108,7 +108,7 @@ def test_port1():
     pkt = Ether(dst=MAC2, src=MAC1)
     pkt = pad_pkt(pkt, 64)
     applyPkt(pkt, 'nf0', pktCnt)
-    expPkt(pkt,   'nf1')
+    expPkt(pkt,   'nf2')
 
 # Test that packets are being mirrored
 def test_mirror():