diff --git a/teardrops/teardrop_dialog.py b/teardrops/teardrop_dialog.py
index 0133e0b..3ff2021 100644
--- a/teardrops/teardrop_dialog.py
+++ b/teardrops/teardrop_dialog.py
@@ -62,5 +62,5 @@ def onCloseWindow(self, event):
 def InitTeardropDialog(board):
     """Launch the dialog"""
     tg = TeardropDialog(board)
-    tg.Show(True)
+    tg.ShowModal()
     return tg