diff --git a/src/data/pokemon/item_effects.h b/src/data/pokemon/item_effects.h
index 9d9f050232..eebdf52238 100644
--- a/src/data/pokemon/item_effects.h
+++ b/src/data/pokemon/item_effects.h
@@ -325,42 +325,64 @@ const u8 gItemEffect_DireHit[8] = {
 };
 
 const u8 gItemEffect_XAttack[8] = {
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_ATTACK,
+#else
     [0] = 1,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
 };
 
-const u8 gItemEffect_XDefend[8] = {
+const u8 gItemEffect_XDefense[8] = {
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_DEFENSE,
+#else
     [1] = 1 << 4,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
 };
 
 const u8 gItemEffect_XSpeed[8] = {
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_SPEED,
+#else
     [1] = 1,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
 };
 
 const u8 gItemEffect_XAccuracy[8] = {
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_ACCURACY,
+#else
     [2] = 1 << 4,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
 };
 
 const u8 gItemEffect_XSpecialAttack[8] = {
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_SPATK,
+#else
     [2] = 1,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
 };
 
 const u8 gItemEffect_XSpecialDefense[8] = {
-    [2] = 1,
+#ifdef BATTLE_ENGINE
+    [1] = ITEM1_X_SPDEF,
+#endif
     [5] = ITEM5_FRIENDSHIP_LOW | ITEM5_FRIENDSHIP_MID,
     [6] = 1,
     [7] = 1,
@@ -517,7 +539,7 @@ const u8 *const gItemEffectTable[] =
     [ITEM_GUARD_SPEC - ITEM_POTION] = gItemEffect_GuardSpec,
     [ITEM_DIRE_HIT - ITEM_POTION] = gItemEffect_DireHit,
     [ITEM_X_ATTACK - ITEM_POTION] = gItemEffect_XAttack,
-    [ITEM_X_DEFENSE - ITEM_POTION] = gItemEffect_XDefend,
+    [ITEM_X_DEFENSE - ITEM_POTION] = gItemEffect_XDefense,
     [ITEM_X_SPEED - ITEM_POTION] = gItemEffect_XSpeed,
     [ITEM_X_ACCURACY - ITEM_POTION] = gItemEffect_XAccuracy,
     [ITEM_X_SP_ATK - ITEM_POTION] = gItemEffect_XSpecialAttack,