diff --git a/src/misc.py b/src/misc.py
index cc1b983..864dd9c 100644
--- a/src/misc.py
+++ b/src/misc.py
@@ -158,7 +158,7 @@ def myPopUp(parentWindow: Any, messType: str, messTitle: str, messText: str, def
 def myPopUp_sb(parentWindow: Any, messType: str, messTitle: str, messText: str, singleButton: QMessageBox.StandardButton = QMessageBox.Ok) -> int:
     message_type = QT_MESSAGE_TYPE.get(messType, QMessageBox.Information)
     mess = QMessageBox(message_type, messTitle, messText, singleButton, parent=parentWindow)
-    mess.setStandardButtons(singleButton | singleButton)
+    mess.setStandardButtons(singleButton)
     return mess.exec_()