diff --git a/chgrp.1 b/chgrp.1
index 7e24699..4981b93 100644
--- a/chgrp.1
+++ b/chgrp.1
@@ -1,4 +1,4 @@
-.Dd January 30, 2015
+.Dd February 9, 2015
 .Dt CHGRP 1
 .Os sbase
 .Sh NAME
@@ -37,3 +37,10 @@ Don't dereference symbolic links (default).
 .Xr chmod 2 ,
 .Xr chown 2 ,
 .Xr getgrnam 3
+.El
+.Sh STANDARDS
+The
+.Nm
+utility is compliant with the
+.St -p1003.1-2008
+specification except from the -h flag.