diff --git a/openpype/tools/settings/settings/window.py b/openpype/tools/settings/settings/window.py
index a60a2a1d88..54f8ec0a11 100644
--- a/openpype/tools/settings/settings/window.py
+++ b/openpype/tools/settings/settings/window.py
@@ -141,7 +141,10 @@ class MainWidget(QtWidgets.QWidget):
         # Don't show dialog if there are not registered slots for
         #   `trigger_restart` signal.
         # - For example when settings are runnin as standalone tool
-        if self.receivers(self.trigger_restart) < 1:
+        # - PySide2 and PyQt5 compatible way how to find out
+        method_index = self.metaObject().indexOfMethod("trigger_restart()")
+        method = self.metaObject().method(method_index)
+        if not self.isSignalConnected(method):
             return
 
         dialog = RestartDialog(self)