diff --git a/man3/abs.3 b/man3/abs.3
index ffcf4039a..ceabe437a 100644
--- a/man3/abs.3
+++ b/man3/abs.3
@@ -97,7 +97,7 @@ T}	Thread safety	MT-Safe
 .TE
 .ad
 .SH CONFORMING TO
-SVr4, POSIX.1-2001, 4.3BSD, C99.
+POSIX.1-2001, POSIX.1-2008, C99, SVr4, 4.3BSD.
 .\" POSIX.1 (1996 edition) requires only the
 .\" .BR abs ()
 .\" function.