diff --git a/ofproto/ofproto-dpif.c b/ofproto/ofproto-dpif.c
index 5a65020d19c..83dcc9c0b08 100644
--- a/ofproto/ofproto-dpif.c
+++ b/ofproto/ofproto-dpif.c
@@ -5063,6 +5063,7 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
 
     error = xlate_actions(&trace.xin, &trace.xout);
     ds_put_char(ds, '\n');
+    trace.xin.flow.actset_output = 0;
     trace_format_flow(ds, 0, "Final flow", &trace);
     trace_format_megaflow(ds, 0, "Megaflow", &trace);
 
diff --git a/tests/ofproto-dpif.at b/tests/ofproto-dpif.at
index 689aec037ec..7cfd6bff2dc 100644
--- a/tests/ofproto-dpif.at
+++ b/tests/ofproto-dpif.at
@@ -7216,3 +7216,14 @@ dpif_netdev|DBG|flow_add: recirc_id=0,in_port=1,vlan_tci=0xf063/0x1000,dl_type=0
 ])
 OVS_VSWITCHD_STOP
 AT_CLEANUP
+
+AT_SETUP([ofproto-dpif - trace (unchanged)])
+OVS_VSWITCHD_START
+AT_CHECK([ovs-appctl ofproto/trace br0 'in_port=1'], [0], [stdout])
+AT_CHECK([grep "Final flow:" stdout], [0], [Final flow: unchanged
+])
+AT_CHECK([ovs-appctl ofproto/trace ovs-dummy 'in_port(100)'], [0], [stdout])
+AT_CHECK([grep "Final flow:" stdout], [0], [Final flow: unchanged
+])
+OVS_VSWITCHD_STOP
+AT_CLEANUP