diff --git a/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java b/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java
index 878492d8a6e8..0d1eb5004a71 100644
--- a/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java
+++ b/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/exec/ControllerImpl.java
@@ -718,9 +718,7 @@ private QueryDefinition initializeQueryDefAndState(final Closer closer)
         MSQControllerTask.isReplaceInputDataSourceTask(task)
     );
 
-    // propagate the controller's context and tags to the worker task
-    taskContextOverridesBuilder.put(MultiStageQueryContext.CTX_OF_CONTROLLER, task.getContext());
-    // specifically assign the 'tags' field for enhanced worker task metrics reporting
+    // propagate the controller's tags to the worker task for enhanced metrics reporting
     Map<String, Object> tags = task.getContextValue(DruidMetrics.TAGS);
     if (tags != null) {
       taskContextOverridesBuilder.put(DruidMetrics.TAGS, tags);
diff --git a/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/util/MultiStageQueryContext.java b/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/util/MultiStageQueryContext.java
index 0fd8e4f51f31..60734b5b1dad 100644
--- a/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/util/MultiStageQueryContext.java
+++ b/extensions-core/multi-stage-query/src/main/java/org/apache/druid/msq/util/MultiStageQueryContext.java
@@ -143,13 +143,6 @@ public class MultiStageQueryContext
 
   public static final String CTX_IS_REINDEX = "isReindex";
 
-  /**
-   * Key for controller task's context passed to worker tasks.
-   * Facilitates sharing the controller's execution environment
-   * and configurations with its associated worker tasks.
-   */
-  public static final String CTX_OF_CONTROLLER = "controllerCtx";
-
   /**
    * Controls sort order within segments. Normally, this is the same as the overall order of the query (from the
    * CLUSTERED BY clause) but it can be overridden.