diff --git a/igniter/install_thread.py b/igniter/install_thread.py
index 7016419829..4723e6adfb 100644
--- a/igniter/install_thread.py
+++ b/igniter/install_thread.py
@@ -35,7 +35,7 @@ class InstallThread(QtCore.QThread):
         self._mongo = None
         self._result = None
 
-        super().__init__(self, parent)
+        super().__init__(parent)
 
     def result(self):
         """Result of finished installation."""