diff --git a/uppdev/EditString/main.cpp b/uppdev/EditString/main.cpp
index 79129e6a7..e45878bc7 100644
--- a/uppdev/EditString/main.cpp
+++ b/uppdev/EditString/main.cpp
@@ -6,7 +6,11 @@ GUI_APP_MAIN
 {
 	EditString es;
 	TopWindow win;
-	es <<= "Something to test";
+	String h;
+	h << "Something ";
+	h.Cat('\0');
+	h << " to test";
+	es <<= h;
 	win.Add(es.HSizePos().TopPos(0, Ctrl::STDSIZE));
 	win.Run();
 }