diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c
index 7e29535..09fb5da 100644
--- a/hw/virtio-9p.c
+++ b/hw/virtio-9p.c
@@ -1875,7 +1875,10 @@ static void v9fs_fsync(V9fsState *s, V9fsPDU *pdu)
         v9fs_post_do_fsync(s, pdu, err);
         return;
     }
-    err = v9fs_do_fsync(s, fidp->fs.fd, datasync);
+    if (fidp->fid_type == P9_FID_DIR)
+        err = v9fs_do_fsync(s, dirfd(fidp->fs.dir), datasync);
+    else
+        err = v9fs_do_fsync(s, fidp->fs.fd, datasync);
     v9fs_post_do_fsync(s, pdu, err);
 }