diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 1fa8bf835be0..61af2a437a05 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -785,7 +785,7 @@ static void list_version_get_info(struct target_type *tt, void *param)
 	struct vers_iter *info = param;
 
 	/* Check space - it might have changed since the first iteration */
-	if ((char *)info->vers + sizeof(tt->version) + strlen(tt->name) + 1 > info->end) {
+	if ((char *)info->vers + sizeof(struct dm_target_versions) + strlen(tt->name) + 1 > info->end) {
 		info->flags = DM_BUFFER_FULL_FLAG;
 		return;
 	}