diff --git a/spec-main/api-browser-window-spec.ts b/spec-main/api-browser-window-spec.ts
index 8342c337ee20..51bb45921012 100644
--- a/spec-main/api-browser-window-spec.ts
+++ b/spec-main/api-browser-window-spec.ts
@@ -185,7 +185,9 @@ describe('BrowserWindow module', () => {
       fs.unlinkSync(test);
       expect(content).to.equal('close');
     });
-    it('should emit beforeunload event', async () => {
+    it('should emit beforeunload event', async function () {
+      // TODO(nornagon): deflake this test.
+      this.retries(3);
       await w.loadFile(path.join(__dirname, 'fixtures', 'api', 'close-beforeunload-false.html'));
       w.webContents.executeJavaScript('run()', true);
       const [e] = await emittedOnce(ipcMain, 'onbeforeunload');