diff --git a/Mac/scripts/EditPythonPrefs.py b/Mac/scripts/EditPythonPrefs.py
index 9e9c370..64c5218 100644
--- a/Mac/scripts/EditPythonPrefs.py
+++ b/Mac/scripts/EditPythonPrefs.py
@@ -161,7 +161,7 @@
 		if n == DIR_ITEM:
 			fss = EasyDialogs.AskFolder(message='Select python home folder:',
 				wanted=macfs.FSSpec)
-			if ok:
+			if fss:
 				options['dir'] = fss
 		elif n == HELP_ITEM and Help:
 			onoff = Help.HMGetBalloons()