diff --git a/static/preload.js b/static/preload.js
index 7a81156331a3497d42b0eb1ab8757101bb5ba475..0f794d867ed3a5627fac229601bdfa651f2dfdb9 100644
--- a/static/preload.js
+++ b/static/preload.js
@@ -239,6 +239,7 @@ window.rubick = {
 
   removeFeature(code) {
     ipcRenderer.sendToHost('removeFeature', {code});
+    return true;
   },
   // 系统
   shellOpenExternal(url) {
@@ -253,6 +254,10 @@ window.rubick = {
     return os.type() === 'Windows_NT';
   },
 
+  isLinux() {
+    return os.type() === 'Linux';
+  },
+
   shellOpenPath(path) {
     shell.openPath(path)
   },