diff --git a/msg/Detection2D.msg b/msg/Detection2D.msg
index 7149bdbb611366d56be3ac356557499428c6a50b..befd4ccd23758a0d0324bfcfb7d340c3cb66781f 100644
--- a/msg/Detection2D.msg
+++ b/msg/Detection2D.msg
@@ -1,3 +1,4 @@
 string class_name
+float32 confidence
 sensor_msgs/RegionOfInterest roi
 std_msgs/ColorRGBA class_color