diff --git a/tests/bsn_mirror.py b/tests/bsn_mirror.py
index 79e9b26..87ca463 100644
--- a/tests/bsn_mirror.py
+++ b/tests/bsn_mirror.py
@@ -141,7 +141,7 @@
         act2.copy_stage = 0
         act3 = ofp.action.output()
         act3.port = ports[1]
-        flow_mod = ofp.message.flow_mod()
+        flow_mod = ofp.message.flow_add()
         flow_mod.match = match
         flow_mod.actions.append(act1)
         flow_mod.actions.append(act2)