diff --git a/README.md b/README.md
index 8b87fe171c0d67c67b131b96f28a2bfbaa969104..89e9447b361d752c6b86d5cbfe60e36ced9f7ae3 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ This project does depend on python packages.
 _Optional (for python 2.*)_
 
 ### Wikstraktor Server
-If you want wikstraktor as a server, you need to install [flask](https://flask.palletsprojects.com/en/2.0.x/installation/) and [flask-cors](https://flask-cors.readthedocs.io/en/latest/), and best practice is to do so in a [virtual environment](https://docs.python.org/3/library/venv.html#module-venv).
+If you want wikstraktor as a server, you need to install [flask](https://flask.palletsprojects.com/en/2.0.x/installation/) and [flask-cors](https://flask-cors.readthedocs.io/en/latest/) — to allow other domains to query —, and best practice is to do so in a [virtual environment](https://docs.python.org/3/library/venv.html#module-venv).
 
 The following commands are extracted from the aforementionned documentation, it is probably more secure to click on the link and follow the modules documentation :
 ```bash