diff --git a/server.py b/server.py
index 757b8be..b6251c9 100644
--- a/server.py
+++ b/server.py
@@ -245,6 +245,9 @@ async def github(request):
 
                 notify(f"[{repository}] @{user} {state} pull request #{pull_request_number} {pull_request_title}{comment} {url}", repository=repository)
 
+            # to avoid duplicated with pull_request_review_comment event
+            elif action == "commented":
+                pass
             else:
                 notify(f"[{repository}] @{user} {action} review pull request #{pull_request_number}: {pull_request_title} {url}", repository=repository)