diff --git a/src/trade.c b/src/trade.c
index df3cb4d33..25614c91a 100644
--- a/src/trade.c
+++ b/src/trade.c
@@ -4813,7 +4813,7 @@ static void CheckPartnersMonForRibbons(void)
 {
     u8 i;
     u8 numRibbons = 0;
-    for (i = 0; i < 12; i ++)
+    for (i = 0; i < (MON_DATA_UNUSED_RIBBONS - MON_DATA_CHAMPION_RIBBON); i ++)
     {
         numRibbons += GetMonData(&gEnemyParty[gSelectedTradeMonPositions[TRADE_PARTNER] % PARTY_SIZE], MON_DATA_CHAMPION_RIBBON + i);
     }