diff --git a/src/battle_util.c b/src/battle_util.c
index ba63bf4fe9..226b041be0 100644
--- a/src/battle_util.c
+++ b/src/battle_util.c
@@ -9582,8 +9582,13 @@ bool32 IsFutureSightAttackerInParty(u32 battlerAtk, u32 battlerDef, u32 move)
         return FALSE;
 
     struct Pokemon *party = GetBattlerParty(battlerAtk);
-    return &party[gWishFutureKnock.futureSightPartyIndex[battlerDef]] != &party[gBattlerPartyIndexes[battlerAtk]]
-        && &party[gWishFutureKnock.futureSightPartyIndex[battlerDef]] != &party[BATTLE_PARTNER(gBattlerPartyIndexes[battlerAtk])];
+    if (IsDoubleBattle())
+    {
+        return &party[gWishFutureKnock.futureSightPartyIndex[battlerDef]] != &party[gBattlerPartyIndexes[battlerAtk]]
+            && &party[gWishFutureKnock.futureSightPartyIndex[battlerDef]] != &party[gBattlerPartyIndexes[BATTLE_PARTNER(battlerAtk)]];
+    }
+
+    return &party[gWishFutureKnock.futureSightPartyIndex[battlerDef]] != &party[gBattlerPartyIndexes[battlerAtk]];
 }
 
 s32 CalculateMoveDamage(struct DamageCalculationData *damageCalcData, u32 fixedBasePower)