diff --git a/support/doctype/support_ticket/__init__.py b/support/doctype/support_ticket/__init__.py
index 63ed8c142d1..93792804849 100644
--- a/support/doctype/support_ticket/__init__.py
+++ b/support/doctype/support_ticket/__init__.py
@@ -85,7 +85,7 @@ We will get back to you as soon as possible
 
 [This is an automatic response]
 
-		""" + signature)
+		""" + (signature or ''))
 
 		from webnotes.utils.email_lib import sendmail