diff --git a/lib/libzfs/libzfs_mount.c b/lib/libzfs/libzfs_mount.c
index 9a57ad98f0..bded1f0014 100644
--- a/lib/libzfs/libzfs_mount.c
+++ b/lib/libzfs/libzfs_mount.c
@@ -877,7 +877,6 @@ zfs_unshare_proto(zfs_handle_t *zhp, const char *mountpoint,
 	char *mntpt = NULL;
 
 	/* check to see if need to unmount the filesystem */
-	rewind(zhp->zfs_hdl->libzfs_mnttab);
 	if (mountpoint != NULL)
 		mountpoint = mntpt = zfs_strdup(hdl, mountpoint);