diff --git a/qutebrowser/mainwindow/tabbedbrowser.py b/qutebrowser/mainwindow/tabbedbrowser.py
index 7c6c4e9c8..dc18fd673 100644
--- a/qutebrowser/mainwindow/tabbedbrowser.py
+++ b/qutebrowser/mainwindow/tabbedbrowser.py
@@ -533,6 +533,9 @@ class TabbedBrowser(tabwidget.TabWidget):
             # We can get signals for tabs we already deleted...
             return
         self.setTabIcon(idx, tab.icon())
+        if idx == self.currentIndex() and config.get('tabs', 
+                                                     'tabs-are-windows'):
+            self.window().setWindowIcon(tab.icon())
 
     @pyqtSlot(usertypes.KeyMode)
     def on_mode_left(self, mode):