diff --git a/debian/printer-driver-pnm2ppa.postinst b/debian/printer-driver-pnm2ppa.postinst
index be9774d..9f09ec9 100644
--- a/debian/printer-driver-pnm2ppa.postinst
+++ b/debian/printer-driver-pnm2ppa.postinst
@@ -31,7 +31,7 @@
 		# VERY simple sed replacement
 		if [ -f ${CONFSRC} ] ; then
 			db_get pnm2ppa/printer_model
-			TEMPFILE=`tempfile`
+			TEMPFILE=`mktemp --tmpdir pnm2ppa.XXXXXXXXXX`
 			# Replace everything following "version " w/model
 			sed -e "s,^\(version \).*$,\1 ${RET}," ${CONFSRC} > \
 				${TEMPFILE}