1 files changed, 6 insertions, 3 deletions
diff --git a/src/gui/styles/qstylesheetstyle.cpp b/src/gui/styles/qstylesheetstyle.cpp
index 714b8c50d9..bd80bb680a 100644
--- a/src/gui/styles/qstylesheetstyle.cpp
+++ b/src/gui/styles/qstylesheetstyle.cpp
@@ -5252,9 +5252,12 @@ int QStyleSheetStyle::styleHint(StyleHint sh, const QStyleOption *opt, const QWi
 #ifndef QT_NO_COMBOBOX
             if (qobject_cast<const QComboBox *>(w)) {
                 QAbstractItemView *view = qFindChild<QAbstractItemView *>(w);
-                QRenderRule subRule = renderRule(view, PseudoElement_None);
-                if (subRule.hasBox() || !subRule.hasNativeBorder())
-                    return QFrame::NoFrame;
+                if (view) {
+                    view->ensurePolished();
+                    QRenderRule subRule = renderRule(view, PseudoElement_None);
+                    if (subRule.hasBox() || !subRule.hasNativeBorder())
+                        return QFrame::NoFrame;
+                }
             }
 #endif // QT_NO_COMBOBOX
             break;