diff --git a/src/battle_gfx_sfx_util.c b/src/battle_gfx_sfx_util.c
index 31e4dcae2f..801e2f5fc5 100644
--- a/src/battle_gfx_sfx_util.c
+++ b/src/battle_gfx_sfx_util.c
@@ -900,8 +900,8 @@ void HandleSpeciesGfxDataChange(u8 battlerAtk, u8 battlerDef, bool32 megaEvo, bo
         {
             if (B_TRANSFORM_SHINY >= GEN_4 && trackEnemyPersonality)
             {
-                personalityValue = GetMonData(&gEnemyParty[gBattlerPartyIndexes[battlerAtk]], MON_DATA_PERSONALITY);
-                isShiny = GetMonData(&gEnemyParty[gBattlerPartyIndexes[battlerAtk]], MON_DATA_IS_SHINY);
+                personalityValue = GetMonData(&gEnemyParty[gBattlerPartyIndexes[battlerDef]], MON_DATA_PERSONALITY);
+                isShiny = GetMonData(&gEnemyParty[gBattlerPartyIndexes[battlerDef]], MON_DATA_IS_SHINY);
             }
             else
             {
@@ -918,8 +918,8 @@ void HandleSpeciesGfxDataChange(u8 battlerAtk, u8 battlerDef, bool32 megaEvo, bo
         {
             if (B_TRANSFORM_SHINY >= GEN_4 && trackEnemyPersonality)
             {
-                personalityValue = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battlerAtk]], MON_DATA_PERSONALITY);
-                isShiny = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battlerAtk]], MON_DATA_IS_SHINY);
+                personalityValue = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battlerDef]], MON_DATA_PERSONALITY);
+                isShiny = GetMonData(&gPlayerParty[gBattlerPartyIndexes[battlerDef]], MON_DATA_IS_SHINY);
             }
             else
             {