diff --git a/src/plugins/qmljseditor/qmljshoverhandler.cpp b/src/plugins/qmljseditor/qmljshoverhandler.cpp
index 1009a7f5433..71b624f5ea7 100644
--- a/src/plugins/qmljseditor/qmljshoverhandler.cpp
+++ b/src/plugins/qmljseditor/qmljshoverhandler.cpp
@@ -173,7 +173,7 @@ bool QmlJSHoverHandler::setQmlTypeHelp(const ScopeChain &scopeChain, const Docum
     QRegularExpressionMatch m = version.match(moduleName);
     if (m.hasMatch()) {
         QMap<QString, QUrl> filteredUrlMap;
-        QStringRef maj = m.capturedRef(2);
+        const QString maj = m.captured(2);
         for (const HelpItem::Link &link : links) {
             QString urlModuleName = link.second.path().split('/')[1];
             if (urlModuleName.contains(maj))
diff --git a/src/plugins/valgrind/callgrind/callgrindcostitem.h b/src/plugins/valgrind/callgrind/callgrindcostitem.h
index 68843f44b70..6f0f6792e81 100644
--- a/src/plugins/valgrind/callgrind/callgrindcostitem.h
+++ b/src/plugins/valgrind/callgrind/callgrindcostitem.h
@@ -25,12 +25,7 @@
 
 #pragma once
 
-#include <QtGlobal>
-
-QT_BEGIN_NAMESPACE
-class QString;
-template<typename T> class QVector;
-QT_END_NAMESPACE
+#include <QVector>
 
 namespace Valgrind {
 namespace Callgrind {