diff --git a/qutebrowser/browser/webengine/webenginetab.py b/qutebrowser/browser/webengine/webenginetab.py
index 172cb3eee..cb3de4215 100644
--- a/qutebrowser/browser/webengine/webenginetab.py
+++ b/qutebrowser/browser/webengine/webenginetab.py
@@ -840,7 +840,7 @@ class WebEngineTab(browsertab.AbstractTab):
             self._on_render_process_terminated)
         view.iconChanged.connect(self.icon_changed)
         # WORKAROUND for https://bugreports.qt.io/browse/QTBUG-65223
-        if qtutils.version_check('5.10',compiled=False):
+        if qtutils.version_check('5.10', compiled=False):
             page.loadProgress.connect(self._on_load_progress_workaround)
             self._load_progress_fake.connect(self._on_load_progress)
             self._load_finished_fake.connect(self._on_history_trigger)