diff --git a/src/com/rkcsd/apps/demo/main/Main.java b/src/com/rkcsd/apps/demo/main/Main.java
index d942961..7632344 100644
--- a/src/com/rkcsd/apps/demo/main/Main.java
+++ b/src/com/rkcsd/apps/demo/main/Main.java
@@ -8,6 +8,7 @@ public class Main {
 
         MainWindow w = new MainWindow();
         MainWindow w2 = new MainWindow();
+        MainWindow w3 = new MainWindow();
 
     }