diff --git a/debian/rules b/debian/rules
index aa9f459..234451e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,12 +1,10 @@
 #!/usr/bin/make -f
 
+include /usr/share/dpkg/default.mk
+
 UPSTREAM_GIT    ?= http://lab.jerasure.org/jerasure/gf-complete.git
 
-DEBVERS         ?= $(shell dpkg-parsechangelog | sed -n -e 's/^Version: //p')
-VERSION         ?= $(shell echo '$(DEBVERS)' | sed -e 's/^[[:digit:]]*://' -e 's/[-].*//')
-DEBFLAVOR       ?= $(shell dpkg-parsechangelog | grep -E ^Distribution: | cut -d" " -f2)
-DEBPKGNAME      ?= $(shell dpkg-parsechangelog | grep -E ^Source: | cut -d" " -f2)
-GIT_TAG         ?= $(shell echo '$(VERSION)' | sed -e 's/~/_/')
+GIT_TAG         ?= $(shell echo '$(DEB_VERSION_UPSTREAM)' | sed -e 's/~/_/')
 
 %:
 	dh $@  --with autoreconf --parallel
@@ -18,11 +16,11 @@ override_dh_install:
 
 gen-orig-xz:
 	git tag -v $(GIT_TAG) || true
-	if [ ! -f ../$(DEBPKGNAME)_$(VERSION).orig.tar.xz ] ; then \
-		git archive --prefix=$(DEBPKGNAME)-$(VERSION)/ $(GIT_TAG) | xz >../$(DEBPKGNAME)_$(VERSION).orig.tar.xz ; \
+	if [ ! -f ../$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM).orig.tar.xz ] ; then \
+		git archive --prefix=$(DEB_SOURCE)-$(DEB_VERSION_UPSTREAM)/ $(GIT_TAG) | xz >../$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM).orig.tar.xz ; \
 	fi
 	[ ! -e ../build-area ] && mkdir ../build-area || true
-	[ ! -e ../build-area/$(DEBPKGNAME)_$(VERSION).orig.tar.xz ] && cp ../$(DEBPKGNAME)_$(VERSION).orig.tar.xz ../build-area
+	[ ! -e ../build-area/$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM).orig.tar.xz ] && cp ../$(DEB_SOURCE)_$(DEB_VERSION_UPSTREAM).orig.tar.xz ../build-area
 
 fetch-upstream-remote:
 	git remote add upstream $(UPSTREAM_GIT) || true