diff --git a/src/corelib/text/qbytearray.h b/src/corelib/text/qbytearray.h
index f6df2d30141..4f4bb6309bd 100644
--- a/src/corelib/text/qbytearray.h
+++ b/src/corelib/text/qbytearray.h
@@ -684,11 +684,13 @@ inline QByteArray operator+(const char *a1, const QByteArray &a2)
 { return QByteArray(a1) += a2; }
 inline QByteArray operator+(char a1, const QByteArray &a2)
 { return QByteArray(&a1, 1) += a2; }
+Q_WEAK_OVERLOAD
 inline QByteArray operator+(const QByteArray &lhs, QByteArrayView rhs)
 {
     QByteArray tmp{lhs.size() + rhs.size(), Qt::Uninitialized};
     return tmp.assign(lhs).append(rhs);
 }
+Q_WEAK_OVERLOAD
 inline QByteArray operator+(QByteArrayView lhs, const QByteArray &rhs)
 {
     QByteArray tmp{lhs.size() + rhs.size(), Qt::Uninitialized};
diff --git a/tests/auto/corelib/text/qstringbuilder/qstringbuilder6/tst_qstringbuilder6.cpp b/tests/auto/corelib/text/qstringbuilder/qstringbuilder6/tst_qstringbuilder6.cpp
index 5393ec2b905..d766ae04a05 100644
--- a/tests/auto/corelib/text/qstringbuilder/qstringbuilder6/tst_qstringbuilder6.cpp
+++ b/tests/auto/corelib/text/qstringbuilder/qstringbuilder6/tst_qstringbuilder6.cpp
@@ -20,8 +20,6 @@
 
 #define LITERAL "some literal"
 
-#define HAS_QTBUG_127928    1
-
 namespace {
 #define P +
 #include "../qstringbuilder1/stringbuilder.cpp"