diff --git a/src/libs/languageserverprotocol/jsonkeys.h b/src/libs/languageserverprotocol/jsonkeys.h
index 6eb6e4b35e8..e5b07c064c0 100644
--- a/src/libs/languageserverprotocol/jsonkeys.h
+++ b/src/libs/languageserverprotocol/jsonkeys.h
@@ -3,11 +3,21 @@
 
 #pragma once
 
+#include <QtGlobal>
+
+#if QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)
 #include <QLatin1StringView>
+#else
+#include <QLatin1String>
+#endif
 
 namespace LanguageServerProtocol {
 
+#if QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)
 using Key = QLatin1StringView;
+#else
+using Key = QLatin1String;
+#endif
 
 constexpr Key actionsKey{"actions"};
 constexpr Key activeParameterKey{"activeParameter"};
diff --git a/src/libs/languageserverprotocol/jsonobject.h b/src/libs/languageserverprotocol/jsonobject.h
index ce73e1c17ec..6c5f7510b79 100644
--- a/src/libs/languageserverprotocol/jsonobject.h
+++ b/src/libs/languageserverprotocol/jsonobject.h
@@ -43,7 +43,11 @@ public:
     const_iterator end() const { return m_jsonObject.end(); }
 
 protected:
+#if QT_VERSION >= QT_VERSION_CHECK(6, 4, 0)
     using Key = QLatin1StringView;
+#else
+    using Key = QLatin1String;
+#endif
     iterator insert(const Key key, const JsonObject &value);
     iterator insert(const Key key, const QJsonValue &value);