diff --git a/lms/djangoapps/discussion/rest_api/discussions_notifications.py b/lms/djangoapps/discussion/rest_api/discussions_notifications.py
index 929e9917a5..88c7fea558 100644
--- a/lms/djangoapps/discussion/rest_api/discussions_notifications.py
+++ b/lms/djangoapps/discussion/rest_api/discussions_notifications.py
@@ -155,7 +155,6 @@ class DiscussionNotificationSender:
                 "author_name": str(author_name),
                 "author_pronoun": str(author_pronoun),
                 "email_content": clean_thread_html_body(self.comment.body),
-                "group_by_id": self.parent_response.id
             }
             self._send_notification([self.thread.user_id], "new_comment", extra_context=context)
 
diff --git a/lms/djangoapps/discussion/rest_api/tests/test_tasks.py b/lms/djangoapps/discussion/rest_api/tests/test_tasks.py
index 3a9eac3245..ddfc120a8e 100644
--- a/lms/djangoapps/discussion/rest_api/tests/test_tasks.py
+++ b/lms/djangoapps/discussion/rest_api/tests/test_tasks.py
@@ -362,7 +362,6 @@ class TestSendResponseNotifications(DiscussionAPIViewTestMixin, ModuleStoreTestC
             'replier_name': self.user_3.username,
             'post_title': self.thread.title,
             'email_content': self.comment.body,
-            'group_by_id': self.thread_2.id,
             'author_name': 'dummy\'s',
             'author_pronoun': 'dummy\'s',
             'course_name': self.course.display_name,
@@ -439,7 +438,6 @@ class TestSendResponseNotifications(DiscussionAPIViewTestMixin, ModuleStoreTestC
         expected_context = {
             'replier_name': self.user_3.username,
             'post_title': self.thread.title,
-            'group_by_id': self.thread_2.id,
             'author_name': 'dummy\'s',
             'author_pronoun': 'your',
             'course_name': self.course.display_name,