diff --git a/doc/mk-sbuild.1 b/doc/mk-sbuild.1
index 78094ef..78249ef 100644
--- a/doc/mk-sbuild.1
+++ b/doc/mk-sbuild.1
@@ -15,6 +15,10 @@ Listed below are the command line options for mk\-sbuild:
 .B \-\-arch\fR=\fIARCH
 What architecture to select (defaults to the native architecture).
 .TP
+.B \-\-target\fR=\fRARCH
+Set up the chroot as a cross-building environment targeting the specified
+architecture.
+.TP
 .B \-\-name\fR=\fINAME
 Base name for the schroot (arch is appended).
 .TP