diff --git a/core/src/main/scala/org/apache/spark/util/Utils.scala b/core/src/main/scala/org/apache/spark/util/Utils.scala
index b4ea1ee950217..143abd3bbea8e 100644
--- a/core/src/main/scala/org/apache/spark/util/Utils.scala
+++ b/core/src/main/scala/org/apache/spark/util/Utils.scala
@@ -1037,7 +1037,7 @@ private[spark] object Utils extends Logging {
   }
 
   /**
-   * Convert a time parameter such as (50s, 100ms, or 250us) to microseconds for internal use. If
+   * Convert a time parameter such as (50s, 100ms, or 250us) to milliseconds for internal use. If
    * no suffix is provided, the passed number is assumed to be in ms.
    */
   def timeStringAsMs(str: String): Long = {