diff --git a/src/battle_main.c b/src/battle_main.c
index 055823f6c1..ffb1fd3908 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -5536,7 +5536,8 @@ void SetTypeBeforeUsingMove(u16 move, u8 battlerAtk)
              )
     {
         gBattleStruct->dynamicMoveType = ateType | F_DYNAMIC_TYPE_2;
-        gBattleStruct->ateBoost[battlerAtk] = 1;
+        if (!IsDynamaxed(battlerAtk))
+            gBattleStruct->ateBoost[battlerAtk] = 1;
     }
     else if (gBattleMoves[move].type != TYPE_NORMAL
              && gBattleMoves[move].effect != EFFECT_HIDDEN_POWER
@@ -5544,7 +5545,8 @@ void SetTypeBeforeUsingMove(u16 move, u8 battlerAtk)
              && attackerAbility == ABILITY_NORMALIZE)
     {
         gBattleStruct->dynamicMoveType = TYPE_NORMAL | F_DYNAMIC_TYPE_2;
-        gBattleStruct->ateBoost[battlerAtk] = 1;
+        if (!IsDynamaxed(battlerAtk))
+            gBattleStruct->ateBoost[battlerAtk] = 1;
     }
     else if (gBattleMoves[move].flags & FLAG_SOUND
              && attackerAbility == ABILITY_LIQUID_VOICE)