diff -r 0347e9bc883e -r 5d2c9d36da9d src/model.h
--- a/src/model.h	Sat Mar 03 16:59:03 2018 +0200
+++ b/src/model.h	Sat Mar 03 17:25:12 2018 +0200
@@ -103,7 +103,7 @@
 	int size() const;
 	const QVector<LDObject*>& objects() const;
 	LDObject* getObject(int position) const;
-	void recountTriangles();
+	Q_SLOT void recountTriangles();
 	int triangleCount() const;
 	QVector<LDObject*>::iterator begin();
 	QVector<LDObject*>::iterator end();