diff --git a/Mac/scripts/EditPythonPrefs.py b/Mac/scripts/EditPythonPrefs.py
index f49f3985cce..5ceb1812365 100644
--- a/Mac/scripts/EditPythonPrefs.py
+++ b/Mac/scripts/EditPythonPrefs.py
@@ -192,6 +192,7 @@ def main():
 	except Res.Error:
 		pass	# Assume we already have acces to our own resource
 	
+	MacOS.SchedParams(1, 0)
 	if len(sys.argv) <= 1:
 		edit_preferences()
 	else: