diff --git a/common/src/main/scala/org/apache/celeborn/common/metrics/source/Source.scala b/common/src/main/scala/org/apache/celeborn/common/metrics/source/Source.scala
index 697eb6eb40..eff7cf744c 100644
--- a/common/src/main/scala/org/apache/celeborn/common/metrics/source/Source.scala
+++ b/common/src/main/scala/org/apache/celeborn/common/metrics/source/Source.scala
@@ -29,8 +29,3 @@ trait Source {
   def getMetrics: String
   def destroy(): Unit
 }
-
-object Source {
-  val MASTER = "master"
-  val WORKER = "worker"
-}