diff --git a/man2/getdomainname.2 b/man2/getdomainname.2
index 44cf7a11c..0e24b188b 100644
--- a/man2/getdomainname.2
+++ b/man2/getdomainname.2
@@ -44,8 +44,10 @@ Feature Test Macro Requirements for glibc (see
 .ad l
 .BR getdomainname (),
 .BR setdomainname ():
+.RS 4
 _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE\ <\ 500)
-.ad b
+.RE
+.ad
 .SH DESCRIPTION
 These functions are used to access or to change the domain name of the
 host system.