[fix]travis build issue
diff --git a/erpnext/non_profit/doctype/chapter_message/chapter_message.py b/erpnext/non_profit/doctype/chapter_message/chapter_message.py
index 64e54d5..c7dd73e 100644
--- a/erpnext/non_profit/doctype/chapter_message/chapter_message.py
+++ b/erpnext/non_profit/doctype/chapter_message/chapter_message.py
@@ -3,6 +3,7 @@
 # For license information, please see license.txt
 
 from __future__ import unicode_literals
+import frappe
 from frappe.model.document import Document
 from frappe import _