diff --git a/gui/gui.js b/gui/gui.js
index c6b5ceffc..9bbebe6d5 100644
--- a/gui/gui.js
+++ b/gui/gui.js
@@ -4,7 +4,7 @@ const { resolve } = require('path')
 const unixPathResolve = require('unix-path-resolve')
 const { once } = require('events')
 const path = require('path')
-const { isMac, isLinux } = require('which-runtime')
+const { isMac, isLinux, isWindows } = require('which-runtime')
 const IPC = require('pear-ipc')
 const ReadyResource = require('ready-resource')
 const Worker = require('../lib/worker')