diff --git a/msg/Detection2D.msg b/msg/Detection2D.msg
index e924ba8..0060053 100644
--- a/msg/Detection2D.msg
+++ b/msg/Detection2D.msg
@@ -16,9 +16,6 @@ BoundingBox2D bbox
 #   the image). Not required for all use cases, so it may be empty.
 sensor_msgs/Image source_img
 
-# If true, this message contains object tracking information.
-bool is_tracking
-
 # ID used for consistency across multiple detection messages. This value will
 #   likely differ from the id field set in each individual ObjectHypothesis.
 # If you set this field, be sure to also set is_tracking to True.