diff --git a/docs/content/Tasks.md b/docs/content/Tasks.md
index faac28ccb6e..930b851880b 100644
--- a/docs/content/Tasks.md
+++ b/docs/content/Tasks.md
@@ -50,7 +50,7 @@ The Index Task is a simpler variation of the Index Hadoop task that is designed
 |property|description|required?|
 |--------|-----------|---------|
 |type|The task type, this should always be "index".|yes|
-|id|The task ID.|no|
+|id|The task ID. If this is not explicitly specified, Druid generates the task ID using the name of the task file and date-time stamp. |no|
 |granularitySpec|Specifies the segment chunks that the task will process. `type` is always "uniform"; `gran` sets the granularity of the chunks ("DAY" means all segments containing timestamps in the same day, while `intervals` sets the interval that the chunks will cover.|yes|
 |spatialDimensions|Dimensions to build spatial indexes over. See [Geographic Queries](GeographicQueries.html).|no|
 |aggregators|The metrics to aggregate in the data set. For more info, see [Aggregations](Aggregations.html)|yes|