diff --git a/debian/rules b/debian/rules
index fca402817841a9cdecc83b7d744599a1aa5d2d71..077d89a3baa75c4df16d0f7c644813d126ab7dc6 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,6 +1,6 @@
 #!/usr/bin/make -f
 
-export PYBUILD_DESTDIR_python3=debian/python3-netfilter/
+export PYBUILD_DESTDIR=debian/python3-netfilter/
 
 %:
 	dh $@ --buildsystem=pybuild