diff --git a/qutebrowser/completion/completionwidget.py b/qutebrowser/completion/completionwidget.py
index 29471597f..2cfc6db7a 100644
--- a/qutebrowser/completion/completionwidget.py
+++ b/qutebrowser/completion/completionwidget.py
@@ -152,12 +152,12 @@ class CompletionView(QTreeView):
         column_widths = self.model().column_widths
         pixel_widths = [(width * perc // 100) for perc in column_widths]
 
-        if self.verticalScrollBar().isVisible():
-            delta = self.style().pixelMetric(QStyle.PM_ScrollBarExtent) + 5
-            if pixel_widths[-1] > delta:
-                pixel_widths[-1] -= delta
-            else:
-                pixel_widths[-2] -= delta
+        delta = self.style().pixelMetric(QStyle.PM_ScrollBarExtent) + 5
+        if pixel_widths[-1] > delta:
+            pixel_widths[-1] -= delta
+        else:
+            pixel_widths[-2] -= delta
+
         for i, w in enumerate(pixel_widths):
             assert w >= 0, i
             self.setColumnWidth(i, w)