diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index 79f7fd9c57f..60135355632 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -151,6 +151,7 @@ target_link_libraries(PlatformToolInternal INTERFACE PlatformAppInternal)
 qt_internal_add_global_definition(QT_NO_JAVA_STYLE_ITERATORS)
 qt_internal_add_global_definition(QT_NO_QASCONST)
 qt_internal_add_global_definition(QT_NO_QEXCHANGE)
+qt_internal_add_global_definition(QT_NO_QSNPRINTF)
 qt_internal_add_global_definition(QT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
 qt_internal_add_global_definition(QT_EXPLICIT_QFILE_CONSTRUCTION_FROM_PATH)
 qt_internal_add_global_definition(QT_USE_QSTRINGBUILDER SCOPE PLUGIN TOOL MODULE)
diff --git a/src/corelib/CMakeLists.txt b/src/corelib/CMakeLists.txt
index 320f9e20a5d..de28a6183e9 100644
--- a/src/corelib/CMakeLists.txt
+++ b/src/corelib/CMakeLists.txt
@@ -332,7 +332,6 @@ qt_internal_add_module(Core
         QT_NO_CONTEXTLESS_CONNECT
         QT_NO_FOREACH
         QT_NO_QPAIR
-        QT_NO_QSNPRINTF
         QT_NO_USING_NAMESPACE
         QT_TYPESAFE_FLAGS
         QT_USE_NODISCARD_FILE_OPEN
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 124e2bfa293..3b3dbd13218 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -275,7 +275,6 @@ qt_internal_add_module(Gui
         QT_NO_CONTEXTLESS_CONNECT
         QT_NO_FOREACH
         QT_NO_USING_NAMESPACE
-        QT_NO_QSNPRINTF
         QT_USE_NODISCARD_FILE_OPEN
         QT_QPA_DEFAULT_PLATFORM_NAME="${QT_QPA_DEFAULT_PLATFORM}"
     INCLUDE_DIRECTORIES
diff --git a/src/testlib/CMakeLists.txt b/src/testlib/CMakeLists.txt
index d4e0a8be38a..391c9de9937 100644
--- a/src/testlib/CMakeLists.txt
+++ b/src/testlib/CMakeLists.txt
@@ -68,7 +68,6 @@ qt_internal_add_module(Test
         QT_NO_CONTEXTLESS_CONNECT
         QT_NO_DATASTREAM
         QT_NO_FOREACH
-        QT_NO_QSNPRINTF
         QT_USE_NODISCARD_FILE_OPEN
         # Ensure uniform location info between release and debug builds
         QT_NO_MESSAGELOGCONTEXT
diff --git a/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp b/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
index 29103b5e3d4..5b22fecbf39 100644
--- a/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
+++ b/tests/auto/corelib/text/qbytearray/tst_qbytearray.cpp
@@ -2,6 +2,10 @@
 // Copyright (C) 2016 Intel Corporation.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
+#ifdef QT_NO_QSNPRINTF
+# undef QT_NO_QSNPRINTF // test of the function
+#endif
+
 #include <QTest>
 
 #include <qbytearray.h>