diff --git a/core/economy.py b/core/economy.py
index b71f9db..b03472b 100644
--- a/core/economy.py
+++ b/core/economy.py
@@ -928,7 +928,8 @@ async def do_fish_sell(user_id: int, indices: list[int] | None = None) -> dict:
         to_sell = inv
         remaining = []
     else:
-        to_sell = [inv[i] for i in sorted(set(indices)) if 0 <= i < len(inv)]
+        valid_indices = [i if i >= 0 else len(inv) + i for i in indices]
+        to_sell = [inv[i] for i in sorted(set(valid_indices)) if 0 <= i < len(inv)]
         keep_idx = set(range(len(inv))) - set(indices)
         remaining = [inv[i] for i in sorted(keep_idx)]