diff --git a/py/webnotes/utils/email_lib/receive.py b/py/webnotes/utils/email_lib/receive.py
index 058e4a78f4..68d2f8305d 100644
--- a/py/webnotes/utils/email_lib/receive.py
+++ b/py/webnotes/utils/email_lib/receive.py
@@ -91,7 +91,7 @@ class IncomingMail:
 		import re
 		subject = self.mail.get('Subject', '')
 
-		return re.findall('(?<=\[)[\w/]+', subject)
+		return re.findall('(?<=\[)[\w/-]+', subject)
 
 
 	def process_part(self, part):