diff --git a/frappe/core/doctype/comment/comment.py b/frappe/core/doctype/comment/comment.py
index e9fdbbca96..5398449b1b 100644
--- a/frappe/core/doctype/comment/comment.py
+++ b/frappe/core/doctype/comment/comment.py
@@ -66,7 +66,7 @@ class Comment(Document):
 
 	def on_update(self):
 		update_comment_in_doc(self)
-		if self.is_new():
+		if not self.is_new():
 			self.notify_change("update")
 
 	def on_trash(self):