diff --git a/lambdas/event_handler/events/add_notification.py b/lambdas/event_handler/events/add_notification.py
index 26521f8..b210af1 100644
--- a/lambdas/event_handler/events/add_notification.py
+++ b/lambdas/event_handler/events/add_notification.py
@@ -104,7 +104,7 @@ def handler(event, context):
                 'lastLiveTitle': {'S': chzzk.liveTitle},
                 'channelId': {'S': chzzk.channel.channelId},
                 'channelName': {'S': chzzk.channel.channelName},
-                'channelImageUrl': {'S': chzzk.channel.channelImageUrl},
+                'channelImageUrl': {'S': chzzk.channel.channelImageUrl or ""},
                 "type": {"S": "CHZZK"}
             }
         )
diff --git a/lambdas/live_check/main.py b/lambdas/live_check/main.py
index 03e8f12..03d97bc 100644
--- a/lambdas/live_check/main.py
+++ b/lambdas/live_check/main.py
@@ -100,7 +100,7 @@ def middleware(event, context):
                                 }
                             ],
                             "image": {
-                                "url": (chzzk.liveImageUrl or chzzk.channel.channelImageUrl).replace("_{type}", "_1080"),
+                                "url": (chzzk.liveImageUrl or chzzk.channel.channelImageUrl or "").replace("_{type}", "_1080"),
                             },
                             "author": {
                                 "name": f"{chzzk.channel.channelName}",