diff --git a/doc/source/coding/python.rst b/doc/source/coding/python.rst
index f5c0af5..417da50 100644
--- a/doc/source/coding/python.rst
+++ b/doc/source/coding/python.rst
@@ -277,7 +277,7 @@ Naming Conventions
   .. code-block:: python
 
      def __init__(self, name):
-	     self._name = name
+        self._name = name
 
 - Use one leading underscore for private methods and instance variables,
   e.g.: