diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c
index 8e1e2d5c247e75c1623e4b5e5346c130d3507724..9dbd29d5acf0dc9f169e331a18cbcb596ff602d9 100644
--- a/lustre/osc/osc_request.c
+++ b/lustre/osc/osc_request.c
@@ -959,7 +959,7 @@ static int check_write_rcs(struct ptlrpc_request *req,
 
         if (req->rq_bulk->bd_nob_transferred != requested_nob) {
                 CERROR("Unexpected # bytes transferred: %d (requested %d)\n",
-                       requested_nob, req->rq_bulk->bd_nob_transferred);
+                       req->rq_bulk->bd_nob_transferred, requested_nob);
                 return(-EPROTO);
         }