diff --git a/README.md b/README.md
index d3517a8..b397ab9 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # realsense2_description
 ROS library for simulating the intel realsense D400 series cameras.
+
+Based on: https://github.com/intel-ros/realsense/tree/development