diff --git a/tools/python/xen/xend/XendConfig.py b/tools/python/xen/xend/XendConfig.py
index ec8a66fb7e..c945ced425 100644
--- a/tools/python/xen/xend/XendConfig.py
+++ b/tools/python/xen/xend/XendConfig.py
@@ -151,7 +151,6 @@ XENAPI_CFG_TYPES = {
     'actions_after_shutdown': str,
     'actions_after_reboot': str,
     'actions_after_crash': str,
-    'tpm_backend': int,    
     'PV_bootloader': str,
     'PV_kernel': str,
     'PV_ramdisk': str,