diff --git a/setsid.1 b/setsid.1
index 3c65051..4359f4e 100644
--- a/setsid.1
+++ b/setsid.1
@@ -1,7 +1,10 @@
-.TH SETSID 1 sbase\-VERSION
-.SH NAME
-setsid \- run a program in a new session
-.SH SYNOPSIS
-.B setsid
-.RI program
-.RI [ arg ...]
+.Dd January 30, 2015
+.Dt SETSID 1 sbase\-VERSION
+.Os
+.Sh NAME
+.Nm setsid
+.Nd run a program in a new session
+.Sh SYNOPSIS
+.Nm
+.Ar program
+.Op Ar arg ...