diff --git a/lib/virtio/virtio_user/vhost_user.c b/lib/virtio/virtio_user/vhost_user.c
index cce8ea0b5..e84abec9c 100644
--- a/lib/virtio/virtio_user/vhost_user.c
+++ b/lib/virtio/virtio_user/vhost_user.c
@@ -261,6 +261,8 @@ static const char *const vhost_msg_strings[VHOST_USER_MAX] = {
 	[VHOST_USER_SET_FEATURES] = "VHOST_SET_FEATURES",
 	[VHOST_USER_GET_FEATURES] = "VHOST_GET_FEATURES",
 	[VHOST_USER_SET_VRING_CALL] = "VHOST_SET_VRING_CALL",
+	[VHOST_USER_GET_PROTOCOL_FEATURES] = "VHOST_USER_GET_PROTOCOL_FEATURES",
+	[VHOST_USER_SET_PROTOCOL_FEATURES] = "VHOST_USER_SET_PROTOCOL_FEATURES",
 	[VHOST_USER_SET_VRING_NUM] = "VHOST_SET_VRING_NUM",
 	[VHOST_USER_SET_VRING_BASE] = "VHOST_SET_VRING_BASE",
 	[VHOST_USER_GET_VRING_BASE] = "VHOST_GET_VRING_BASE",