diff --git a/qutebrowser/misc/earlyinit.py b/qutebrowser/misc/earlyinit.py
index ca1053422..36606756c 100644
--- a/qutebrowser/misc/earlyinit.py
+++ b/qutebrowser/misc/earlyinit.py
@@ -319,6 +319,7 @@ def check_libraries(backend):
     else:
         assert backend == 'webkit'
         modules['PyQt5.QtWebKit'] = _missing_str("PyQt5.QtWebKit")
+        modules['PyQt5.QtWebKitWidgets'] = _missing_str("PyQt5.QtWebKitWidgets")
 
     from qutebrowser.utils import log