diff --git a/atst/domain/requests/requests.py b/atst/domain/requests/requests.py
index f830d604..e61df2a9 100644
--- a/atst/domain/requests/requests.py
+++ b/atst/domain/requests/requests.py
@@ -225,8 +225,8 @@ class Requests(object):
         return Requests._add_review(user, request, review_data)
 
     @classmethod
-    def update_internal_comments(cls, user, request, comment_text):
+    def add_internal_comment(cls, user, request, comment_text):
         Authorization.check_can_approve_request(user)
-        request.internal_comments = RequestInternalComment(text=comment_text, user=user)
-        request = RequestsQuery.add_and_commit(request)
+        comment = RequestInternalComment(request=request, text=comment_text, user=user)
+        RequestsQuery.add_and_commit(comment)
         return request
diff --git a/atst/models/request.py b/atst/models/request.py
index d7d1f96c..e2dee7a4 100644
--- a/atst/models/request.py
+++ b/atst/models/request.py
@@ -45,7 +45,7 @@ class Request(Base, mixins.TimestampsMixin):
         "RequestRevision", back_populates="request", order_by="RequestRevision.sequence"
     )
 
-    internal_comments = relationship("RequestInternalComment", uselist=False)
+    internal_comments = relationship("RequestInternalComment")
 
     @property
     def latest_revision(self):
@@ -167,10 +167,6 @@ class Request(Base, mixins.TimestampsMixin):
     def reviews(self):
         return [status.review for status in self.status_events if status.review]
 
-    @property
-    def internal_comments_text(self):
-        return self.internal_comments.text if self.internal_comments else ""
-
     @property
     def is_pending_financial_verification(self):
         return self.status == RequestStatus.PENDING_FINANCIAL_VERIFICATION
diff --git a/tests/domain/test_requests.py b/tests/domain/test_requests.py
index c9f03d8e..286e906a 100644
--- a/tests/domain/test_requests.py
+++ b/tests/domain/test_requests.py
@@ -223,10 +223,13 @@ def test_request_changes_to_financial_verification_info():
     assert current_review.fname_mao == review_data["fname_mao"]
 
 
-def test_update_internal_comments():
+def test_add_internal_comment():
     request = RequestFactory.create()
     ccpo = UserFactory.from_atat_role("ccpo")
 
-    request = Requests.update_internal_comments(ccpo, request, "this is my comment")
+    assert len(request.internal_comments) == 0
 
-    assert request.internal_comments.text == "this is my comment"
+    request = Requests.add_internal_comment(ccpo, request, "this is my comment")
+
+    assert len(request.internal_comments) == 1
+    assert request.internal_comments[0].text == "this is my comment"