diff --git a/cmake/QtInternalTargets.cmake b/cmake/QtInternalTargets.cmake
index d8ccdefcb0..569fddbbc6 100644
--- a/cmake/QtInternalTargets.cmake
+++ b/cmake/QtInternalTargets.cmake
@@ -160,7 +160,7 @@ qt_internal_add_global_definition(QT_NO_AS_CONST)
 qt_internal_add_global_definition(QT_NO_QEXCHANGE)
 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)
+qt_internal_add_global_definition(QT_USE_QSTRINGBUILDER SCOPE PLUGIN TOOL)
 
 if(WARNINGS_ARE_ERRORS)
     qt_internal_set_warnings_are_errors_flags(PlatformModuleInternal INTERFACE)
diff --git a/cmake/QtToolHelpers.cmake b/cmake/QtToolHelpers.cmake
index db18a4dbfd..9fa84146b8 100644
--- a/cmake/QtToolHelpers.cmake
+++ b/cmake/QtToolHelpers.cmake
@@ -119,7 +119,6 @@ function(qt_internal_add_tool target_name)
         INCLUDE_DIRECTORIES
             ${arg_INCLUDE_DIRECTORIES}
         DEFINES
-            QT_USE_QSTRINGBUILDER
             ${arg_DEFINES}
             ${deprecation_define}
         ${corelib}