diff --git a/include/battle.h b/include/battle.h
index b587e482d..5658f603c 100644
--- a/include/battle.h
+++ b/include/battle.h
@@ -239,7 +239,7 @@ struct WishFutureKnock
     u8 futureSightAttacker[MAX_BATTLERS_COUNT];
     u16 futureSightMove[MAX_BATTLERS_COUNT];
     u8 wishCounter[MAX_BATTLERS_COUNT];
-    u8 wishMonId[MAX_BATTLERS_COUNT];
+    u8 wishPartyId[MAX_BATTLERS_COUNT];
     u8 weatherDuration;
     u8 knockedOffMons[2]; // Each battler is represented by a bit. The array entry is dependent on the battler's side.
 };
diff --git a/src/battle_script_commands.c b/src/battle_script_commands.c
index 0f2fdfe84..a236bf880 100644
--- a/src/battle_script_commands.c
+++ b/src/battle_script_commands.c
@@ -12335,7 +12335,7 @@ static void Cmd_trywish(void)
         if (gWishFutureKnock.wishCounter[gBattlerAttacker] == 0)
         {
             gWishFutureKnock.wishCounter[gBattlerAttacker] = 2;
-            gWishFutureKnock.wishMonId[gBattlerAttacker] = gBattlerPartyIndexes[gBattlerAttacker];
+            gWishFutureKnock.wishPartyId[gBattlerAttacker] = gBattlerPartyIndexes[gBattlerAttacker];
             gBattlescriptCurrInstr += 6;
         }
         else
@@ -12344,9 +12344,12 @@ static void Cmd_trywish(void)
         }
         break;
     case 1: // heal effect
-        PREPARE_MON_NICK_WITH_PREFIX_BUFFER(gBattleTextBuff1, gBattlerTarget, gWishFutureKnock.wishMonId[gBattlerTarget])
+        PREPARE_MON_NICK_WITH_PREFIX_BUFFER(gBattleTextBuff1, gBattlerTarget, gWishFutureKnock.wishPartyId[gBattlerTarget])
         #if B_WISH_HP_SOURCE >= GEN_5
-            gBattleMoveDamage = max(1, gBattleMons[gWishFutureKnock.wishMonId[gBattlerTarget]].maxHP / 2);
+            if (GetBattlerSide(gBattlerTarget) == B_SIDE_PLAYER)
+                gBattleMoveDamage = max(1, GetMonData(&gPlayerParty[gWishFutureKnock.wishPartyId[gBattlerTarget]], MON_DATA_MAX_HP) / 2);
+            else
+                gBattleMoveDamage = max(1, GetMonData(&gEnemyParty[gWishFutureKnock.wishPartyId[gBattlerTarget]], MON_DATA_MAX_HP) / 2);
         #else
             gBattleMoveDamage = max(1, gBattleMons[gBattlerTarget].maxHP / 2);
         #endif