diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index e68744e169b3..897a052270f9 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -822,6 +822,10 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 								  nls_cp,
 								  first_time);
 				iov[1].iov_len = blob_len;
+				/* Make sure that we tell the server that we
+				   are using the uid that it just gave us back
+				   on the response (challenge) */
+				smb_buf->Uid = ses->Suid;
 			} else {
 				cERROR(1, ("invalid phase %d", phase));
 				rc = -ENOSYS;