diff --git a/README.md b/README.md
index 75c9a5e6..076cb2c5 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ git clone https://github.com/vector-im/element-call.git
 cd element-call
 yarn
 yarn link matrix-js-sdk
+cp .env.example .env
 yarn dev
 ```