diff --git a/doc/urdf_srdf/urdf_srdf_tutorial.rst b/doc/urdf_srdf/urdf_srdf_tutorial.rst
index 0a2d6cbd8..87a031b51 100644
--- a/doc/urdf_srdf/urdf_srdf_tutorial.rst
+++ b/doc/urdf_srdf/urdf_srdf_tutorial.rst
@@ -18,7 +18,7 @@ This section contains a set of tips on making sure that the URDF that you genera
 
 Special Characters in Joint Names
 """""""""""""""""""""""""""""""""
-Joint names should not contain any of the following special characters: ``-``, ``[``, ``]``, ``(``, ``)``. 
+Joint names should not contain any of the following special characters: ``-``, ``[``, ``]``, ``(``, ``)``.
 
 We hope to be able to get rid of these restrictions on the joint names soon.