diff --git a/app/plugins.js b/app/plugins.js
index a1b00d5e..f5b26b6d 100644
--- a/app/plugins.js
+++ b/app/plugins.js
@@ -19,7 +19,7 @@ const cache = new Config();
 const path = resolve(homedir(), '.hyper_plugins');
 const localPath = resolve(homedir(), '.hyper_plugins', 'local');
 const availableExtensions = new Set([
-  'onApp', 'onWindow', 'onUnload', 'middleware',
+  'onApp', 'onWindow', 'onRendererWindow', 'onUnload', 'middleware',
   'reduceUI', 'reduceSessions', 'reduceTermGroups',
   'decorateMenu', 'decorateTerm', 'decorateHyper',
   'decorateHyperTerm', // for backwards compatibility with hyperterm