--- a/eric6/MultiProject/MultiProjectBrowser.py	Mon Oct 05 19:51:55 2020 +0200
+++ b/eric6/MultiProject/MultiProjectBrowser.py	Tue Oct 06 17:52:44 2020 +0200
@@ -367,7 +367,7 @@
                     dlg = AddProjectDialog(
                         self, project=project,
                         categories=self.multiProject.getCategories())
-                    if dlg.exec_() == QDialog.Accepted:
+                    if dlg.exec() == QDialog.Accepted:
                         (name, filename, isMaster, description, category,
                          uid) = dlg.getData()
                         project = {