diff --git a/telemetry/definitions/commonDefinitions.json b/telemetry/definitions/commonDefinitions.json
index 4d18b0a1e..0675466ae 100644
--- a/telemetry/definitions/commonDefinitions.json
+++ b/telemetry/definitions/commonDefinitions.json
@@ -2379,20 +2379,8 @@
                     "type": "perfClientLatency",
                     "required": false
                 },
-                {
-                    "type": "reason",
-                    "required": false
-                },
-                {
-                    "type": "reasonDesc",
-                    "required": false
-                },
                 {
                     "type": "result"
-                },
-                {
-                    "type": "source",
-                    "required": false
                 }
             ]
         },