diff --git a/browser/base/content/test/general/browser_tab_detach_restore.js b/browser/base/content/test/general/browser_tab_detach_restore.js
index ea5994d1932..0557c9e1566 100644
--- a/browser/base/content/test/general/browser_tab_detach_restore.js
+++ b/browser/base/content/test/general/browser_tab_detach_restore.js
@@ -22,7 +22,7 @@ add_task(function*() {
 
   win = SessionStore.undoCloseWindow(0);
   yield BrowserTestUtils.waitForEvent(win, "load", 10000);
-  yield BrowserTestUtils.waitForEvent(win.gBrowser.tabs[0], "SSTabRestored");
+  yield BrowserTestUtils.waitForEvent(win.gBrowser.tabs[0], "SSTabRestored", 10000);
 
   is(win.gBrowser.tabs.length, 1, "Should have restored one tab");
   is(win.gBrowser.selectedBrowser.currentURI.spec, uri, "Should have restored the right page");