diff --git a/libsndio/sio_open.3 b/libsndio/sio_open.3
index 128833c..5e560dd 100644
--- a/libsndio/sio_open.3
+++ b/libsndio/sio_open.3
@@ -191,7 +191,7 @@ it's meaningful only if
 .It Va msb
 If set, then the
 .Va bits
-bits are aligned in the packet to the most significant bit
+are aligned in the packet to the most significant bit
 (i.e. lower bits are padded),
 else to the least significant bit
 (i.e. higher bits are padded);