diff --git a/doc/dev_start_guide.rst b/doc/dev_start_guide.rst
index f7500a727c..7c3d88a7e6 100644
--- a/doc/dev_start_guide.rst
+++ b/doc/dev_start_guide.rst
@@ -68,7 +68,7 @@ Documentation and docstrings
docstrings of all the classes and functions should respect the
`PEP257 `_ rules and follow the
`Numpy docstring standard
- `_.
+ `_.
* To cross-reference other objects (e.g. reference other classes or methods) in
the docstrings, use the