+.SH ENVIRONMENT
+The following environment variables can be used to control the
+behavior of notmuch.
+.TP
+.B NOTMUCH_CONFIG
+Specifies the location of the notmuch configuration file. Notmuch will
+use ${HOME}/.notmuch\-config if this variable is not set.
+.SH SEE ALSO
+
+\fBnotmuch\fR(1), \fBnotmuch-count\fR(1), \fBnotmuch-dump\fR(1),
+\fBnotmuch-hooks\fR(5), \fBnotmuch-new\fR(1), \fBnotmuch-reply\fR(1),
+\fBnotmuch-restore\fR(1), \fBnotmuch-search\fR(1),
+\fBnotmuch-search-terms\fR(7), \fBnotmuch-show\fR(1),
+\fBnotmuch-tag\fR(1)