diff --git a/erpnext/portal/product_configurator/utils.py b/erpnext/portal/product_configurator/utils.py
index 211b94a..d60b1a2 100644
--- a/erpnext/portal/product_configurator/utils.py
+++ b/erpnext/portal/product_configurator/utils.py
@@ -101,7 +101,7 @@
 	return html
 
 def set_item_group_filters(field_filters):
-	if 'item_group' in field_filters:
+	if field_filters is not None and 'item_group' in field_filters:
 		field_filters['item_group'] = [ig[0] for ig in get_child_groups(field_filters['item_group'])]