diff --git a/sources/ElementsCollection/elementscollectionmodel.cpp b/sources/ElementsCollection/elementscollectionmodel.cpp
index d216b0f25..d041cd07a 100644
--- a/sources/ElementsCollection/elementscollectionmodel.cpp
+++ b/sources/ElementsCollection/elementscollectionmodel.cpp
@@ -284,9 +284,20 @@ void ElementsCollectionModel::loadCollections(bool common_collection,
 		this, &ElementsCollectionModel::loadingProgressRangeChanged);
 	connect(watcher, &QFutureWatcher<void>::finished,
 		this, &ElementsCollectionModel::loadingFinished);
-	connect(watcher, &QFutureWatcher<void>::finished,
-		watcher, &QFutureWatcher<void>::deleteLater);
+	connect(
+		watcher,
+		&QFutureWatcher<void>::finished,
+		watcher,
+		&QFutureWatcher<void>::deleteLater);
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) // ### Qt 6: remove
 	m_future = QtConcurrent::map(m_items_list_to_setUp, setUpData);
+#else
+#	if TODO_LIST
+#		pragma message("@TODO remove code for QT 6 or later")
+#	endif
+	qDebug() << "Help code for QT 6 or later"
+			 << "QtConcurrent::run its backwards now...function, object, args";
+#endif
 	watcher->setFuture(m_future);
 }
 
diff --git a/sources/elementdialog.cpp b/sources/elementdialog.cpp
index 6d62c75b8..310329457 100644
--- a/sources/elementdialog.cpp
+++ b/sources/elementdialog.cpp
@@ -28,7 +28,6 @@
 #include <QPushButton>
 #include <QTreeView>
 #include <QVBoxLayout>
-#include <QtConcurrent>
 
 /**
 	@brief ElementDialog::ElementDialog
diff --git a/sources/qetproject.cpp b/sources/qetproject.cpp
index 4d0f9448e..b4f16b8a4 100644
--- a/sources/qetproject.cpp
+++ b/sources/qetproject.cpp
@@ -1783,7 +1783,8 @@ void QETProject::writeBackup()
 #		if TODO_LIST
 #			pragma message("@TODO remove code for QT 6 or later")
 #		endif
-	qDebug()<<"Help code for QT 6 or later";
+	qDebug() << "Help code for QT 6 or later"
+			 << "QtConcurrent::run its backwards now...function, object, args";
 #	endif
 #endif
 }