diff --git a/openpype/tools/settings/settings/window.py b/openpype/tools/settings/settings/window.py
index f369c2758c..fc28b61fec 100644
--- a/openpype/tools/settings/settings/window.py
+++ b/openpype/tools/settings/settings/window.py
@@ -14,6 +14,8 @@ from openpype.tools.settings import (
 
 
 class MainWidget(QtWidgets.QWidget):
+    trigger_restart = QtCore.Signal()
+
     widget_width = 1000
     widget_height = 600