diff --git a/man3/xdr.3 b/man3/xdr.3
index aa4eaeecb..713827567 100644
--- a/man3/xdr.3
+++ b/man3/xdr.3
@@ -21,13 +21,13 @@ The prototypes below are declared in
 .I <rpc/xdr.h>
 and make use of the following types:
 .PP
-.in +4n
+.RS 4
 .EX
 .BI "typedef int " bool_t ;
 .PP
 .BI "typedef bool_t (*" xdrproc_t ") (XDR *, void *,...);"
 .EE
-.in
+.RE
 .PP
 For the declaration of the
 .I XDR