diff --git a/Makefile b/Makefile
index 4d44a96b0..c1495df45 100644
--- a/Makefile
+++ b/Makefile
@@ -380,12 +380,14 @@ debian/compat:
 dpkg: ../scst_$(VERSION).orig.tar.gz
 	@[ -z "$$DEBEMAIL" ] || export DEBEMAIL=bvanassche@acm.org &&	\
 	[ -z "$$DEBFULLNAME" ] || export DEBFULLNAME="Bart Van Assche" &&\
+	echo "KDIR=$(KDIR)" &&						\
+	echo "KVER=$(KVER)" &&						\
 	sed 's/%{scst_version}/$(VERSION)/'				\
 	  <debian/scst.dkms.in >debian/scst.dkms &&			\
-	sed 's/%{KVER}/$(KVER)/'				\
-	  <debian/scst.preinst.in >debian/scst.preinst &&			\
-	sed 's/%{KVER}/$(KVER)/'				\
-	  <debian/scst.postinst.in >debian/scst.postinst &&			\
+	sed 's/%{KVER}/$(KVER)/'					\
+	  <debian/scst.preinst.in >debian/scst.preinst &&		\
+	sed 's/%{KVER}/$(KVER)/'					\
+	  <debian/scst.postinst.in >debian/scst.postinst &&		\
 	output_files=(							\
 		../*_$(VERSION)-$(DEBIAN_REVISION)_*.deb		\
 		../*_$(VERSION)-$(DEBIAN_REVISION)_*.ddeb		\