diff --git a/erpnext/setup/doctype/personalize/personalize.py b/erpnext/setup/doctype/personalize/personalize.py
index 3264546..dc9ad66 100644
--- a/erpnext/setup/doctype/personalize/personalize.py
+++ b/erpnext/setup/doctype/personalize/personalize.py
@@ -14,7 +14,8 @@
 	# on update
 	#
 	def validate(self):
-		if self.doc.file_list and self.doc.set_from_attachment:
+		from webnotes.utils import cint
+		if self.doc.file_list and cint(self.doc.set_from_attachment):
 			self.set_html_from_image()
 
 		# update control panel - so it loads new letter directly