diff --git a/examples/TwoJoint/TwoJointMain.cpp b/examples/TwoJoint/TwoJointMain.cpp
index bec340a0c..6c25fe5be 100644
--- a/examples/TwoJoint/TwoJointMain.cpp
+++ b/examples/TwoJoint/TwoJointMain.cpp
@@ -1,3 +1,7 @@
+/**
+ * License: Bullet3 license
+ * Author: Avik De <avikde@gmail.com>
+ */
 #include <map>
 #include <string>
 #include <stdio.h>
diff --git a/examples/TwoJoint/compareBulletMATLAB.m b/examples/TwoJoint/compareBulletMATLAB.m
index 2b2aa6a79..3c2cf9560 100644
--- a/examples/TwoJoint/compareBulletMATLAB.m
+++ b/examples/TwoJoint/compareBulletMATLAB.m
@@ -1,3 +1,5 @@
+% License: Bullet3 license
+% Author: Avik De <avikde@gmail.com>
 
 robot = importrobot('../../data/TwoJointRobot_wo_fixedJoints.urdf');
 show(robot)