diff --git a/telemetry/definitions/commonDefinitions.json b/telemetry/definitions/commonDefinitions.json
index 5b5bb8b7..3eb54d4c 100644
--- a/telemetry/definitions/commonDefinitions.json
+++ b/telemetry/definitions/commonDefinitions.json
@@ -289,7 +289,8 @@
                 "gradlew.bat",
                 "gradlew",
                 "gradle",
-                "IDEBundledGradle"
+                "IDEBundledGradle",
+                "unknown"
             ]
         },
         {
@@ -298,7 +299,8 @@
             "description": "Type of build system",
             "allowedValues": [
                 "Maven",
-                "Gradle"
+                "Gradle",
+                "unknown"
             ]
         },
         {
@@ -3797,7 +3799,7 @@
             "metadata" : [
                 {
                     "type": "codeTransformBuildCommand",
-                    "required": true
+                    "required": false
                 },
                 {
                     "type": "codeTransformSessionId",
@@ -4057,7 +4059,7 @@
                 },
                 {
                     "type": "codeTransformBuildSystem",
-                    "required": true
+                    "required": false
                 },
                 {
                     "type": "codeTransformLocalJavaVersion",