diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h
index f09f1a3c41..c92f43e1fc 100644
--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@@ -256,7 +256,7 @@ public:
     static inline QVector<T> fromStdVector(const std::vector<T> &vector)
     { QVector<T> tmp; tmp.reserve(int(vector.size())); std::copy(vector.begin(), vector.end(), std::back_inserter(tmp)); return tmp; }
     inline std::vector<T> toStdVector() const
-    { std::vector<T> tmp; tmp.reserve(size()); std::copy(constBegin(), constEnd(), std::back_inserter(tmp)); return tmp; }
+    { return std::vector<T>(d->begin(), d->end()); }
 private:
     friend class QRegion; // Optimization for QRegion::rects()