diff --git a/schemas/legacy.json b/schemas/legacy.json
index 4c7bc38..2bad881 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -65,9 +65,6 @@
                 "EntityInstance": {
                     "$ref": "#/$defs/Types/EntityInstance"
                 },
-                "FaultIndex": {
-                    "$ref": "#/$defs/Types/FaultIndex"
-                },
                 "FaultType": {
                     "$ref": "#/$defs/Types/FaultType"
                 },
@@ -1039,9 +1036,6 @@
             "EntityInstance": {
                 "type": "number"
             },
-            "FaultIndex": {
-                "type": "number"
-            },
             "FaultType": {
                 "type": "string"
             },