Fix a typo

diff --git a/docs/api/ipc-browser.md b/docs/api/ipc-browser.md
index b7fe48d..eb84885 100644 (file)
--- a/docs/api/ipc-browser.md
+++ b/docs/api/ipc-browser.md
@@ -22,7 +22,7 @@ ipc.on('asynchronous-message', function(event, arg) {
 
 ipc.on('synchronous-message', function(event, arg) {
   console.log(arg);  // prints "ping"
-  event.returnValue = 'pong'.
+  event.returnValue = 'pong';
 });
 ```