diff --git a/src/battle_main.c b/src/battle_main.c
index 25cee6dfa9..10b5f25e0c 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -4738,9 +4738,9 @@ u32 GetBattlerTotalSpeedStatArgs(u32 battler, u32 ability, u32 holdEffect)
         speed *= 2;
     else if (ability == ABILITY_SLOW_START && gDisableStructs[battler].slowStartTimer != 0)
         speed /= 2;
-    else if (ability == ABILITY_PROTOSYNTHESIS && (gBattleWeather & B_WEATHER_SUN || gBattleStruct->boosterEnergyActivates & gBitTable[battler]))
+    else if (ability == ABILITY_PROTOSYNTHESIS && (gBattleWeather & B_WEATHER_SUN || gBattleStruct->boosterEnergyActivates & (1u << battler)))
         speed = (GetHighestStatId(battler) == STAT_SPEED) ? (speed * 150) / 100 : speed;
-    else if (ability == ABILITY_QUARK_DRIVE && (gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN || gBattleStruct->boosterEnergyActivates & gBitTable[battler]))
+    else if (ability == ABILITY_QUARK_DRIVE && (gFieldStatuses & STATUS_FIELD_ELECTRIC_TERRAIN || gBattleStruct->boosterEnergyActivates & (1u << battler)))
         speed = (GetHighestStatId(battler) == STAT_SPEED) ? (speed * 150) / 100 : speed;
 
     // stat stages