diff --git a/src/battle_util.c b/src/battle_util.c
index a6429d935b..8d00cc0f2a 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -4043,7 +4043,7 @@ bool32 TryChangeBattleWeather(u32 battler, u32 battleWeatherId, bool32 viaAbilit
         gBattleWeather = sBattleWeatherInfo[battleWeatherId].flag;
         if (gBattleWeather & B_WEATHER_PRIMAL_ANY)
             gWishFutureKnock.weatherDuration = 0;
-        if (rock != 0 && GetBattlerHoldEffect(battler, TRUE) == rock)
+        else if (rock != 0 && GetBattlerHoldEffect(battler, TRUE) == rock)
             gWishFutureKnock.weatherDuration = 8;
         else
             gWishFutureKnock.weatherDuration = 5;