diff --git a/bot.py b/bot.py
index eba33f5..4a51980 100644
--- a/bot.py
+++ b/bot.py
@@ -763,7 +763,7 @@ def get_quotes_rolling_index(guild_id: int, author: str) -> Optional[int]:
         rolling_indeces[author] = 0
 
     index = rolling_indeces[author]
-    rolling_indeces[author] = index + 1
+    rolling_indeces[author] = (index + 1) % len(rolling_indeces)
     config_set_raw("guild_quotes_rolling_indeces", rolling_indeces, guild=guild_id)
     return index