diff --git a/atom/renderer/lib/init.coffee b/atom/renderer/lib/init.coffee
index 470715626b..196891554d 100644
--- a/atom/renderer/lib/init.coffee
+++ b/atom/renderer/lib/init.coffee
@@ -77,7 +77,7 @@ if nodeIntegration in ['true', 'all', 'except-iframe', 'manual-enable-iframe']
     global.__dirname = __dirname
 
   # Redirect window.onerror to uncaughtException.
-  window.onerror = (error) ->
+  window.onerror = (message, filename, lineno, colno, error) ->
     if global.process.listeners('uncaughtException').length > 0
       global.process.emit 'uncaughtException', error
       true