diff --git a/Config.mk b/Config.mk
index 1b9302ab6d..2cb15d4be0 100644
--- a/Config.mk
+++ b/Config.mk
@@ -78,7 +78,6 @@ XSM_ENABLE ?= n
 FLASK_ENABLE ?= n
 ACM_SECURITY ?= n
 
-QEMU_TAG=xen-3.3.0-rc2
 QEMU_REMOTE=http://xenbits.xensource.com/git-http/qemu-xen-unstable.git
 
 # Specify which qemu-dm to use. This may be `ioemu' to use the old
diff --git a/xen/Makefile b/xen/Makefile
index 4d28d7cba9..97a286f1d2 100644
--- a/xen/Makefile
+++ b/xen/Makefile
@@ -2,7 +2,7 @@
 # All other places this is stored (eg. compile.h) should be autogenerated.
 export XEN_VERSION       = 3
 export XEN_SUBVERSION    = 3
-export XEN_EXTRAVERSION ?= .0-rc2$(XEN_VENDORVERSION)
+export XEN_EXTRAVERSION ?= .0-rc3-pre$(XEN_VENDORVERSION)
 export XEN_FULLVERSION   = $(XEN_VERSION).$(XEN_SUBVERSION)$(XEN_EXTRAVERSION)
 -include xen-version