diff --git a/sunrpc/clnt_udp.c b/sunrpc/clnt_udp.c
index 8c24677c83..70ee0eae88 100644
--- a/sunrpc/clnt_udp.c
+++ b/sunrpc/clnt_udp.c
@@ -413,7 +413,7 @@ clntudp_call (cl, proc, xargs, argsp, xresults, resultsp, utimeout)
 	{
 	  fromlen = sizeof (struct sockaddr);
 	  inlen = __recvfrom (cu->cu_sock, cu->cu_inbuf,
-			      (int) cu->cu_recvsz, 0,
+			      (int) cu->cu_recvsz, MSG_DONTWAIT,
 			      (struct sockaddr *) &from, &fromlen);
 	}
       while (inlen < 0 && errno == EINTR);