diff --git a/assignments/04/ExtendedVector/README.md b/assignments/04/ExtendedVector/README.md
index 5cc631a..8a34628 100644
--- a/assignments/04/ExtendedVector/README.md
+++ b/assignments/04/ExtendedVector/README.md
@@ -1 +1,2 @@
 Requires Qt6
+You can open it in QtCreator, but you might have to manually compile the mainwindow.ui with `uic -o ui_mainwindow.h mainwindow.ui` (qt6 uic), since `qtchooser` is not supporting qt6 yet.