diff --git a/debian/rules.real b/debian/rules.real
index dadcbd4a5..7ac3b1bb0 100644
--- a/debian/rules.real
+++ b/debian/rules.real
@@ -299,6 +299,7 @@ install-headers-all: DH_OPTIONS = -plinux-headers-$(VERSION)
 install-headers-all:
 	dh_testdir
 	dh_testroot
+	chmod a+x debian/modules/gencontrol.py
 	dh_install $(DH_OPTIONS) debian/arch debian/lib debian/modules '/usr/src/linux-headers-$(VERSION)'
 	dh_python $(DH_OPTIONS) -V 2.4 /usr/src/linux-headers-$(VERSION)/lib/python
 	$(MAKE) -f debian/rules.real install-base DH_OPTIONS='$(DH_OPTIONS)'