diff --git a/examples/websocket-server/README.md b/examples/websocket-server/README.md
index 8417f5a9d..a8f2f1aac 100644
--- a/examples/websocket-server/README.md
+++ b/examples/websocket-server/README.md
@@ -8,6 +8,7 @@ This is an example that shows how to use `WebsocketServerTransport` to communica
 python3 -m venv venv
 source venv/bin/activate
 pip install -r requirements.txt
+cp env.example .env # and add your credentials
 ```
 
 ## Run the bot