diff --git a/netpfga/do-all-steps.sh b/netpfga/do-all-steps.sh
index c7fbbec..1463607 100755
--- a/netpfga/do-all-steps.sh
+++ b/netpfga/do-all-steps.sh
@@ -16,6 +16,10 @@ cd $P4_PROJECT_DIR/nf_sume_sdnet_ip/SimpleSumeSwitch && ./vivado_sim.bash 2>&1 |
 expected_line=$(grep ^expected LOG | sed -e 's/.*= <//' -e 's/.*= (//')
 actual_line=$(grep ^actual LOG     | sed -e 's/.*= <//' -e 's/.*= (//')
 
+# if [ -z "$expected_line" ]; then
+#     echo "Empty packet grep -- probably broken - aborting"
+#     exit 1
+# fi
 
 if [ "$expected_line" != "$actual_line" ]; then
     echo packet mismatch