--- a/eric6/Project/MakePropertiesDialog.py	Mon Mar 01 17:48:43 2021 +0100
+++ b/eric6/Project/MakePropertiesDialog.py	Tue Mar 02 17:17:09 2021 +0100
@@ -73,8 +73,9 @@
         """
         Private slot to update the enabled state of the OK button.
         """
-        self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(bool(
-            self.makeTargetEdit.text()))
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Ok).setEnabled(bool(
+                self.makeTargetEdit.text()))
     
     def storeData(self):
         """