diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c
index f15c5da3fdff1204beaf82c4ee89c700aac241ac..b6ec637cd45035a6642be3e05fd579b6de843f83 100644
--- a/lustre/osc/osc_request.c
+++ b/lustre/osc/osc_request.c
@@ -897,7 +897,7 @@ 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);
         }