diff --git a/include/battle_controllers.h b/include/battle_controllers.h
index 50e37c917c..cdc1adf79e 100644
--- a/include/battle_controllers.h
+++ b/include/battle_controllers.h
@@ -113,6 +113,7 @@ struct ChooseMoveStruct
     u16 species;
     u8 monType1;
     u8 monType2;
+    struct MegaEvolutionData mega;
 };
 
 enum
diff --git a/src/battle_main.c b/src/battle_main.c
index 98e28ec1d7..165fa79115 100644
--- a/src/battle_main.c
+++ b/src/battle_main.c
@@ -4224,6 +4224,7 @@ static void HandleTurnActionSelectionState(void)
                     {
                         struct ChooseMoveStruct moveInfo;
 
+                        moveInfo.mega = gBattleStruct->mega;
                         moveInfo.species = gBattleMons[gActiveBattler].species;
                         moveInfo.monType1 = gBattleMons[gActiveBattler].type1;
                         moveInfo.monType2 = gBattleMons[gActiveBattler].type2;
diff --git a/src/battle_util.c b/src/battle_util.c
index ffa409d7f3..1b90f8cd2c 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -5605,14 +5605,15 @@ bool32 CanMegaEvolve(u8 battlerId)
     struct Pokemon *mon;
     u8 battlerPosition = GetBattlerPosition(battlerId);
     u8 partnerPosition = GetBattlerPosition(BATTLE_PARTNER(battlerId));
+    struct MegaEvolutionData *mega = &(((struct ChooseMoveStruct*)(&gBattleBufferA[gActiveBattler][4]))->mega);
 
     // Check if trainer already mega evolved a pokemon.
-    if (gBattleStruct->mega.alreadyEvolved[battlerPosition])
+    if (mega->alreadyEvolved[battlerPosition])
         return FALSE;
     if (gBattleTypeFlags & BATTLE_TYPE_DOUBLE)
     {
         if (IsPartnerMonFromSameTrainer(battlerId)
-            && (gBattleStruct->mega.alreadyEvolved[partnerPosition] || (gBattleStruct->mega.toEvolve & gBitTable[BATTLE_PARTNER(battlerId)])))
+            && (mega->alreadyEvolved[partnerPosition] || (mega->toEvolve & gBitTable[BATTLE_PARTNER(battlerId)])))
             return FALSE;
     }