diff --git a/telemetry/definitions/commonDefinitions.json b/telemetry/definitions/commonDefinitions.json
index 36c8c84f..19b1148b 100644
--- a/telemetry/definitions/commonDefinitions.json
+++ b/telemetry/definitions/commonDefinitions.json
@@ -1001,6 +1001,11 @@
             "type": "string",
             "description": "Unique identifier for each message in an conversation"
         },
+        {
+            "name": "cwsprChatProgrammingLanguage",
+            "type": "string",
+            "description": "Programming language associated with the message"
+        },
         {
             "name": "cwsprChatTotalCodeBlocks",
             "type": "int",
@@ -2054,6 +2059,10 @@
                     "type": "cwsprChatMessageId",
                     "required": true
                 },
+                {
+                    "type": "cwsprChatProgrammingLanguage",
+                    "required": false
+                },
                 {
                     "type": "cwsprChatUserIntent",
                     "required": false