diff --git a/src/widgets/styles/qstylesheetstyle.cpp b/src/widgets/styles/qstylesheetstyle.cpp
index a1824a1df7b..d8b6f6fdfe2 100644
--- a/src/widgets/styles/qstylesheetstyle.cpp
+++ b/src/widgets/styles/qstylesheetstyle.cpp
@@ -5297,6 +5297,8 @@ QSize QStyleSheetStyle::sizeFromContents(ContentsType ct, const QStyleOption *op
 #if QT_CONFIG(spinbox)
     case CT_SpinBox:
         if (const QStyleOptionSpinBox *spinbox = qstyleoption_cast<const QStyleOptionSpinBox *>(opt)) {
+            if (rule.baseStyleCanDraw())
+                return baseStyle()->sizeFromContents(ct, opt, sz, w);
             if (spinbox->buttonSymbols != QAbstractSpinBox::NoButtons) {
                 // Add some space for the up/down buttons
                 QRenderRule subRule = renderRule(w, opt, PseudoElement_SpinBoxUpButton);