diff --git a/tests/auto/corelib/text/qbytearrayview/tst_qbytearrayview.cpp b/tests/auto/corelib/text/qbytearrayview/tst_qbytearrayview.cpp
index 702e1840da6..5802f2a583a 100644
--- a/tests/auto/corelib/text/qbytearrayview/tst_qbytearrayview.cpp
+++ b/tests/auto/corelib/text/qbytearrayview/tst_qbytearrayview.cpp
@@ -519,7 +519,7 @@ namespace help {
 template <typename T>
 size_t size(const T &t) { return size_t(t.size()); }
 template <typename T>
-size_t size(const T *t) { return std::char_traits<T>::length(t); }
+size_t size(const T *t) { return QtPrivate::lengthHelperPointer(t); }
 
 template <typename T>
 decltype(auto)             cbegin(const T &t) { return t.begin(); }