diff --git a/src/main/base/browserwindow.ts b/src/main/base/browserwindow.ts
index 10b472da..6c15512e 100644
--- a/src/main/base/browserwindow.ts
+++ b/src/main/base/browserwindow.ts
@@ -372,7 +372,8 @@ export class BrowserWindow {
      * @yields {object} Electron browser window
      */
     async createWindow(): Promise<Electron.BrowserWindow> {
-        this.clientPort = await getPort({ port: 9000 });
+        const envPort = process.env?.CIDER_PORT || '9000'
+        this.clientPort = await getPort({ port: parseInt(envPort, 10) || 9000 });
         BrowserWindow.verifyFiles();
         this.StartWatcher(utils.getPath('themes'));
 
@@ -1573,4 +1574,4 @@ export class BrowserWindow {
         server2.start();
         console.log('remote broadcasted')
     }
-}
\ No newline at end of file
+}