diff --git a/Makefile b/Makefile
index 526139a09b..e4c6184c95 100644
--- a/Makefile
+++ b/Makefile
@@ -36,7 +36,7 @@ SENDER =	udevsend
 INFO =		udevinfo
 TESTER =	udevtest
 STARTER =	udevstart
-VERSION =	021
+VERSION =	021_bk
 INSTALL_DIR =	/usr/local/bin
 RELEASE_NAME =	$(ROOT)-$(VERSION)
 LOCAL_CFG_DIR =	etc/udev
diff --git a/udev.spec b/udev.spec
index 9ead619186..b7e429d077 100644
--- a/udev.spec
+++ b/udev.spec
@@ -34,7 +34,7 @@
 
 Summary: A userspace implementation of devfs
 Name: udev
-Version: 021
+Version: 021_bk
 Release: 1
 License: GPL
 Group: Utilities/System