diff --git a/docs/contributing.rst b/docs/contributing.rst
index 9d824aa8..6c656b17 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -27,6 +27,7 @@ Alternatively, you can also use the `requirements.txt` file to install the
 dependencies yourself. That would be::
 
      pip install -r requirements.txt
+     pip install .
 
 And then run the application::