diff --git a/ros-py-urdf-parser/Makefile b/ros-py-urdf-parser/Makefile
index 0c421fd88e5664999386d3d5d8af4e7a220ca79d..5f519f31176c00946cd8797ffaa61362f2405ab5 100644
--- a/ros-py-urdf-parser/Makefile
+++ b/ros-py-urdf-parser/Makefile
@@ -14,6 +14,7 @@ ROS_COMMENT=	Standalone URDF parser for Python.
 include ../../meta-pkgs/ros-base/Makefile.common
 include ../../wip/ros-object-recognition-msgs/depend.mk
 include ../../wip/ros-octomap-msgs/depend.mk
+include ../../mk/sysdep/py-yaml.mk
 
 include ../../devel/ros-catkin/depend.mk
 include ../../mk/sysdep/python.mk