diff --git a/src/battle_util.c b/src/battle_util.c
index ae18d0a7dc..a346118869 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -3126,7 +3126,7 @@ u8 AtkCanceller_UnableToUseMove(void)
                 else
                 {
                     u8 toSub;
-                    if (gBattleMons[gBattlerAttacker].ability == ABILITY_EARLY_BIRD)
+                    if (GetBattlerAbility(gBattlerAttacker) == ABILITY_EARLY_BIRD)
                         toSub = 2;
                     else
                         toSub = 1;