diff -pruN 1.3.0-1/debian/changelog 1.3.0-1ubuntu1/debian/changelog
--- 1.3.0-1/debian/changelog	2009-10-21 15:28:27.000000000 +0100
+++ 1.3.0-1ubuntu1/debian/changelog	2009-10-21 15:28:29.000000000 +0100
@@ -1,3 +1,9 @@
+van.pydeb (1.3.0-1ubuntu1) karmic; urgency=low
+
+  * debian/rules_templates/rules.1.mk: export DH_OPTIONS; see LP #425740.
+
+ -- Loïc Minier <loic.minier@ubuntu.com>  Tue, 15 Sep 2009 20:46:00 +0200
+
 van.pydeb (1.3.0-1) unstable; urgency=low
 
   * New upstream release.
diff -pruN 1.3.0-1/debian/rules_templates/rules.1.mk 1.3.0-1ubuntu1/debian/rules_templates/rules.1.mk
--- 1.3.0-1/debian/rules_templates/rules.1.mk	2009-10-21 15:28:27.000000000 +0100
+++ 1.3.0-1ubuntu1/debian/rules_templates/rules.1.mk	2009-10-21 15:28:29.000000000 +0100
@@ -4,6 +4,8 @@
 # Values lifted from setup.py and control file
 PYVERS=$(shell pyversions -vr debian/control)
 
+export DH_OPTIONS
+
 ifeq ($(origin py_package), undefined)
   py_package=$(shell van-pydeb src_to_py `dpkg-parsechangelog -c1 -ldebian/changelog | grep 'Source: ' | sed 's/Source: //'`)
 endif