diff --git a/README.md b/README.md
index 3826229..e1fce28 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ HowTo
 So you want to contribute, nice!
 
 ```
-mkvirtualenv hackmeeting-website
+mkvirtualenv -p `which python3` hackmeeting-website
 pip install -r requirements.txt
 make all serve
 firefox http://localhost:8000/