diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index fd5901bd4aa2..e62b1c9ac262 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2936,7 +2936,8 @@ fullmesh_tests()
 	fi
 
 	# set fullmesh flag
-	if reset "set fullmesh flag test"; then
+	if reset "set fullmesh flag test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
 		pm_nl_set_limits $ns1 4 4
 		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
 		pm_nl_set_limits $ns2 4 4
@@ -2946,7 +2947,8 @@ fullmesh_tests()
 	fi
 
 	# set nofullmesh flag
-	if reset "set nofullmesh flag test"; then
+	if reset "set nofullmesh flag test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
 		pm_nl_set_limits $ns1 4 4
 		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow,fullmesh
 		pm_nl_set_limits $ns2 4 4
@@ -2956,7 +2958,8 @@ fullmesh_tests()
 	fi
 
 	# set backup,fullmesh flags
-	if reset "set backup,fullmesh flags test"; then
+	if reset "set backup,fullmesh flags test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
 		pm_nl_set_limits $ns1 4 4
 		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
 		pm_nl_set_limits $ns2 4 4
@@ -2967,7 +2970,8 @@ fullmesh_tests()
 	fi
 
 	# set nobackup,nofullmesh flags
-	if reset "set nobackup,nofullmesh flags test"; then
+	if reset "set nobackup,nofullmesh flags test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
 		pm_nl_set_limits $ns1 4 4
 		pm_nl_set_limits $ns2 4 4
 		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup,fullmesh