diff -r c438a7db7c52 -r 6fe24fd945c0 src/linetypes/polygonobject.h
--- a/src/linetypes/polygonobject.h	Mon Aug 24 23:00:50 2020 +0300
+++ b/src/linetypes/polygonobject.h	Mon Aug 24 23:02:30 2020 +0300
@@ -52,7 +52,7 @@
 		}
 		return BaseClass::getProperty(id);
 	}
-	void setProperty(SetPropertyResult* result, const PropertyKeyValue& pair)
+	void setProperty(SetPropertyResult* result, const PropertyKeyValue& pair) override
 	{
 		LDRAW_OBJECT_HANDLE_SET_PROPERTY(Point0, {points[0] = value;})
 		LDRAW_OBJECT_HANDLE_SET_PROPERTY(Point1, {points[1] = value;})