diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index 0040e3bc7b16..ad6547c79b83 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -778,6 +778,14 @@ test_subflows()
 
 test_subflows_v4_v6_mix()
 {
+	local client_evts
+	client_evts=$(mktemp)
+	# Capture events on the network namespace running the client
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
+	evts_pid=$!
+	sleep 0.5
+
 	# Attempt to add a listener at 10.0.2.1:<subflow-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
 	   $app6_port > /dev/null 2>&1 &
@@ -820,6 +828,9 @@ test_subflows_v4_v6_mix()
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
 	   "$server6_token" > /dev/null 2>&1
 	sleep 0.5
+
+	kill_wait $evts_pid
+	rm -f "$client_evts"
 }
 
 test_prio()