diff --git a/src/battle_main.c b/src/battle_main.c
index 9385aaf228..ec4a3e2c3b 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -3877,11 +3877,11 @@ static void TryDoEventsBeforeFirstTurn(void)
     case FIRST_TURN_EVENTS_SWITCH_IN_ABILITIES:
         while (gBattleStruct->switchInBattlerCounter < gBattlersCount) // From fastest to slowest
         {
-            gBattlerAttacker = gBattlerByTurnOrder[gBattleStruct->switchInBattlerCounter++];
+            i = gBattlerByTurnOrder[gBattleStruct->switchInBattlerCounter++];
 
-            if (TryPrimalReversion(gBattlerAttacker))
+            if (TryPrimalReversion(i))
                 return;
-            if (AbilityBattleEffects(ABILITYEFFECT_ON_SWITCHIN, gBattlerAttacker, 0, 0, 0) != 0)
+            if (AbilityBattleEffects(ABILITYEFFECT_ON_SWITCHIN, i, 0, 0, 0) != 0)
                 return;
         }
         gBattleStruct->switchInBattlerCounter = 0;