diff --git a/libsndio/sio.c b/libsndio/sio.c
index 5be13b8..05ee1ce 100644
--- a/libsndio/sio.c
+++ b/libsndio/sio.c
@@ -220,7 +220,7 @@ sio_psleep(struct sio_hdl *hdl, int event)
 {
 	struct pollfd pfd[SIO_MAXNFDS];
 	int revents;
-	nfds_t nfds;
+	int nfds;
 
 	nfds = sio_nfds(hdl);
 	if (nfds > SIO_MAXNFDS) {