diff --git a/qutebrowser/widgets/tabbedbrowser.py b/qutebrowser/widgets/tabbedbrowser.py
index 671b1c58b..b2078be9d 100644
--- a/qutebrowser/widgets/tabbedbrowser.py
+++ b/qutebrowser/widgets/tabbedbrowser.py
@@ -34,7 +34,8 @@ from qutebrowser.widgets.tabwidget import TabWidget
 from qutebrowser.widgets.webview import WebView
 from qutebrowser.browser.signalfilter import SignalFilter
 from qutebrowser.browser.commands import CommandDispatcher
-from qutebrowser.utils.qt import qt_ensure_valid
+from qutebrowser.utils.qt import qt_ensure_valid, QtValueError
+from qutebrowser.commands.exceptions import CommandError
 
 
 class TabbedBrowser(TabWidget):