diff --git a/README.md b/README.md
index 28f45eb24f071e29ac77c63b570157202081d013..62346eb9ec0fd7aeab1ef5b189272ada314b58ec 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ````
 ./install_openpose_and_enable_package.sh
 ````
-2. If everything succeeds, run `catkin build` then:
+2. If everything succeeds, run `catkin build`, source your workspace then:
 ````
 roscd openpose_ros/openpose
 rosrun openpose_ros openpose_ros_openpose_node --image_dir examples/media/