diff --git a/moderation/moderation.py b/moderation/moderation.py
index 9b76746..3f26fea 100644
--- a/moderation/moderation.py
+++ b/moderation/moderation.py
@@ -1719,7 +1719,10 @@ class Moderation(commands.Cog):
                 timestamp = round(case['timestamp'] / 1000)
 
                 if case['duration']:
-                    duration = timedelta(seconds=round(float(case['duration']) / 1000))
+                    try:
+                        duration = timedelta(seconds=round(float(case['duration']) / 1000))
+                    except OverflowError:
+                        continue
 
                 if case['resolved']:
                     resolved = 1