diff --git a/sys/kern/vfs_mount.c b/sys/kern/vfs_mount.c
index f1d4bc0cdabe..161d4fea7f5b 100644
--- a/sys/kern/vfs_mount.c
+++ b/sys/kern/vfs_mount.c
@@ -1832,6 +1832,12 @@ int
 __vfs_statfs(struct mount *mp, struct statfs *sbp)
 {
 
+	/*
+	 * Filesystems only fill in part of the structure for updates, we
+	 * have to read the entirety first to get all content.
+	 */
+	memcpy(sbp, &mp->mnt_stat, sizeof(*sbp));
+
 	/*
 	 * Set these in case the underlying filesystem fails to do so.
 	 */