diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index ab0507e7c467e9..19cfe44b35a260 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3304,12 +3304,13 @@ userspace_pm_rm_sf()
 {
 	local evts=$evts_ns1
 	local t=${3:-1}
-	local ip=4
+	local ip
 	local tk da dp sp
 	local cnt
 
 	[ "$1" == "$ns2" ] && evts=$evts_ns2
-	if mptcp_lib_is_v6 $2; then ip=6; fi
+	[ -n "$(mptcp_lib_evts_get_info "saddr4" "$evts" $t)" ] && ip=4
+	[ -n "$(mptcp_lib_evts_get_info "saddr6" "$evts" $t)" ] && ip=6
 	tk=$(mptcp_lib_evts_get_info token "$evts")
 	da=$(mptcp_lib_evts_get_info "daddr$ip" "$evts" $t)
 	dp=$(mptcp_lib_evts_get_info dport "$evts" $t)
@@ -3415,7 +3416,7 @@ userspace_tests()
 			userspace_pm_rm_addr $ns1 10
 			userspace_pm_rm_sf $ns1 ::ffff:10.0.2.1 $SUB_ESTABLISHED
 		else
-			userspace_pm_rm_sf $ns1 ::ffff:10.0.2.1 $SUB_ESTABLISHED
+			userspace_pm_rm_sf $ns1 10.0.2.1 $SUB_ESTABLISHED
 			userspace_pm_rm_addr $ns1 10
 		fi
 		chk_rm_nr 1 1 invert