diff --git a/man7/unix.7 b/man7/unix.7
index 594894268..aa07793c2 100644
--- a/man7/unix.7
+++ b/man7/unix.7
@@ -566,7 +566,7 @@ The first call will receive five bytes of data,
 along with the ancillary data sent by the second
 .BR sendmsg (2)
 call.
-The next call will receive the remaining five bytes of data.
+The next call will receive the remaining four bytes of data.
 .PP
 If the space allocated for receiving incoming ancillary data is too small
 then the ancillary data is truncated to the number of headers