diff --git a/debian/rules b/debian/rules
index 05cb5ccb..6ef7771e 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,12 +1,12 @@
 #!/usr/bin/make -f
 
-export DEB_BUILD_HARDENING=1
-export PYBUILD_NAME=sipsimple
+export DEB_BUILD_HARDENING = 1
+export PYBUILD_NAME = sipsimple
 
 %:
 	dh $@ --with python2 --buildsystem=pybuild
 
 override_dh_clean:
 	dh_clean
 	rm -rf build dist MANIFEST