diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
index 23f27d4128..9558d521ba 100644
--- a/tools/libxl/libxl_types.idl
+++ b/tools/libxl/libxl_types.idl
@@ -65,6 +65,8 @@ libxl_error = Enumeration("error", [
     (-19, "REMUS_DEVICE_NOT_SUPPORTED"),
     (-20, "VNUMA_CONFIG_INVALID"),
     (-21, "DOMAIN_NOTFOUND"),
+    (-22, "ABORTED"),
+    (-23, "NOTFOUND"),
     ], value_namespace = "")
 
 libxl_domain_type = Enumeration("domain_type", [