diff --git a/man2/gethostid.2 b/man2/gethostid.2
index 4e4c9c481..0e06bf1f0 100644
--- a/man2/gethostid.2
+++ b/man2/gethostid.2
@@ -76,7 +76,7 @@ cannot open
 then it obtains the host name using
 .BR gethostname (2),
 passes that host name to
-.BR gethostbyaddr (3)
+.BR gethostbyname_r (3)
 in order to obtain the host's IPv4 address,
 and returns a value obtained by bit-twiddling the IPv4 address.
 (This value may not be unique.)