diff --git a/pull_requests.py b/pull_requests.py
index dae7ea5..9683351 100644
--- a/pull_requests.py
+++ b/pull_requests.py
@@ -184,16 +184,16 @@ def get_files(pr: PullRequest, repo: Repository, repo_path: str) -> dict[str, Fi
 def get_comments(pr: PullRequest) -> list[Comment]:
     ret = []
     for comment in pr.get_review_comments():
-        comment = Comment(
+        comment_to_add = Comment(
             body=comment.body,
             file=comment.path,
             from_=comment.start_line if comment.start_line else comment.line,
             to=comment.line,
         )
-        if comment.from_ is None or comment.to is None:
-            comment.to = comment.original_line
-            comment.from_ = comment.original_start_line
-        ret.append(comment)
+        if comment_to_add.from_ is None or comment_to_add.to is None:
+            comment_to_add.to = comment.original_line
+            comment_to_add.from_ = comment.original_start_line
+        ret.append(comment_to_add)
     return ret