diff -r 47fb4bb3db45 -r 23018a2ed2a0 src/RelpipeChartMainWindow.cpp
--- a/src/RelpipeChartMainWindow.cpp	Mon Dec 03 16:11:40 2018 +0100
+++ b/src/RelpipeChartMainWindow.cpp	Thu Dec 13 01:45:28 2018 +0100
@@ -46,6 +46,7 @@
 	tableView->setModel(currentModel);
 
 	if (currentChartWidget) currentChartWidget->endOfRelation();
+	splitter = new QSplitter(Qt::Orientation::Vertical, tabs);
 	currentChartWidget = new RelpipeChartWidget(currentModel, splitter);
 	splitter->addWidget(currentChartWidget);
 	splitter->addWidget(tableView);