diff --git a/qutebrowser/mainwindow/statusbar/progress.py b/qutebrowser/mainwindow/statusbar/progress.py
index 4e21fb91e..6d52455d7 100644
--- a/qutebrowser/mainwindow/statusbar/progress.py
+++ b/qutebrowser/mainwindow/statusbar/progress.py
@@ -66,10 +66,10 @@ class Progress(QProgressBar):
     @pyqtSlot(int)
     def on_tab_changed(self, tab):
         """Set the correct value when the current tab changed."""
-        if self is None:
+        if self is None:  # pragma: no branch
             # This should never happen, but for some weird reason it does
             # sometimes.
-            return
+            return  # pragma: no cover
         self.setValue(tab.progress)
         if tab.load_status == webview.LoadStatus.loading:
             self.show()
diff --git a/scripts/dev/check_coverage.py b/scripts/dev/check_coverage.py
index a04cee533..f6e157be9 100644
--- a/scripts/dev/check_coverage.py
+++ b/scripts/dev/check_coverage.py
@@ -35,8 +35,10 @@ PERFECT_FILES = [
     'qutebrowser/commands/cmdexc.py',
     'qutebrowser/misc/readline.py',
     'qutebrowser/browser/tabhistory.py',
+
     'qutebrowser/mainwindow/statusbar/keystring.py',
     'qutebrowser/mainwindow/statusbar/percentage.py',
+    'qutebrowser/mainwindow/statusbar/progress.py',
 
     'qutebrowser/config/configtypes.py',
     'qutebrowser/config/configdata.py',