diff --git a/specification/json/sections/cper-cxl-protocol.json b/specification/json/sections/cper-cxl-protocol.json
index 83cef63..bc46245 100644
--- a/specification/json/sections/cper-cxl-protocol.json
+++ b/specification/json/sections/cper-cxl-protocol.json
@@ -1,5 +1,4 @@
 {
-    "$id": "cper-json-cxl-protocol-section",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "type": "object",
     "required": [
@@ -57,6 +56,7 @@
             "type": "object",
             "oneOf": [
                 {
+                    "$id": "cper-json-cxlagentaddress0",
                     "type": "object",
                     "required": [
                         "functionNumber",
@@ -80,6 +80,7 @@
                     }
                 },
                 {
+                    "$id": "cper-json-cxlagentaddress1",
                     "type": "object",
                     "required": ["value"],
                     "properties": {