diff --git a/app/models/message_template.rb b/app/models/message_template.rb
index ec761ddcf..bc6c5a714 100644
--- a/app/models/message_template.rb
+++ b/app/models/message_template.rb
@@ -114,6 +114,6 @@ class MessageTemplate < ApplicationRecord
   end
 
   def simple_type 
-    self.type.split("::")[-1]
+    self.type.to_s.split("::")[-1]
   end
 end