diff --git a/aruco_pose/cfg/DetectorParams.cfg b/aruco_pose/cfg/DetectorParams.cfg
index ed4a18d3..c96c942b 100755
--- a/aruco_pose/cfg/DetectorParams.cfg
+++ b/aruco_pose/cfg/DetectorParams.cfg
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env python
 PACKAGE = "aruco_pose"
 
 from dynamic_reconfigure.parameter_generator_catkin import *