diff --git a/lib/opcodes.py b/lib/opcodes.py
index 4fcc0882a0959fefdf5747aa177532c50c5e5242..a5e41dee3d7ae53940ba929c29ed361808dca8da 100644
--- a/lib/opcodes.py
+++ b/lib/opcodes.py
@@ -267,6 +267,7 @@ class OpCreateInstance(OpCode):
     "vcpus", "ip", "bridge", "src_node", "src_path", "start",
     "wait_for_sync", "ip_check", "mac",
     "kernel_path", "initrd_path", "hvm_boot_order",
+    "file_storage_dir", "file_driver",
     ]