diff --git a/README.md b/README.md
index 08af3f6..97c314b 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ serverless-webrtc
 
 This is a tech demo of using WebRTC without a signaling server -- the 
 WebRTC offer/answer exchange is performed manually by the users, for example
-via IM.  This means that the app can run out of `file:///` directly, without
+via IM.  This means that the app can run via a `file:///` URI directly, without
 involving a web server.  You can send text messages and files between peers.
 
 This repository contains two different clients that can talk to each other: