diff --git a/doc/programming/index.rst b/doc/programming/index.rst
index d049babd..60135675 100644
--- a/doc/programming/index.rst
+++ b/doc/programming/index.rst
@@ -1,3 +1,4 @@
+
 ===========
 Programming
 ===========
@@ -56,7 +57,7 @@ now run the precompiled code samples, for example:
 .. code-block:: Text
 
      Windows:           simulate ..\model\humanoid\humanoid.xml
-     Linux and macOS:   ./simulate ../model/humanoid/humanoid.xml 
+     Linux and macOS:   ./simulate ../model/humanoid/humanoid.xml
 
 The directory structure is shown below. Users can re-organize it if needed, as well as install the dynamic libraries in
 other directories and set the path accordingly. The only file created automatically is MUJOCO_LOG.TXT in the executable