diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index 597e7464cbb..ef3a9884bf9 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -99,7 +99,7 @@ public:
 #ifdef Q_COMPILER_INITIALIZER_LISTS
     QVarLengthArray<T, Prealloc> &operator=(std::initializer_list<T> list)
     {
-        resize(list.size());
+        resize(int(list.size())); // ### q6sizetype
         std::copy(list.begin(), list.end(),
                   QT_MAKE_CHECKED_ARRAY_ITERATOR(this->begin(), this->size()));
         return *this;