diff --git a/src/data/move.ts b/src/data/move.ts
index fe1ab24a863..b163744119b 100644
--- a/src/data/move.ts
+++ b/src/data/move.ts
@@ -3585,7 +3585,18 @@ export class FirstMoveCondition extends MoveCondition {
   }
 }
 
-const sameTypeCondition: MoveConditionFunc = (user, target, move) => user.getTypes().some(item => target.getTypes().includes(item));
+export class hitsSameTypeAttr extends VariableMoveTypeMultiplierAttr {
+  apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
+    const multiplier = args[0] as Utils.NumberHolder;
+    if (!user.getTypes().some(type => target.getTypes().includes(type))){
+      multiplier.value = 0;
+      return true;
+    }
+    return false;
+  }
+}
+
+const unknownTypeCondition: MoveConditionFunc = (user, target, move) => !user.getTypes().includes(Type.UNKNOWN);
 
 export type MoveTargetSet = {
   targets: BattlerIndex[];
@@ -4963,7 +4974,8 @@ export function initMoves() {
       .attr(CompareWeightPowerAttr),
     new AttackMove(Moves.SYNCHRONOISE, Type.PSYCHIC, MoveCategory.SPECIAL, 120, 100, 10, -1, 0, 5)
       .target(MoveTarget.ALL_NEAR_OTHERS)
-      .condition(sameTypeCondition),
+      .condition(unknownTypeCondition)
+      .attr(hitsSameTypeAttr),
     new AttackMove(Moves.ELECTRO_BALL, Type.ELECTRIC, MoveCategory.SPECIAL, -1, 100, 10, -1, 0, 5)
       .attr(BattleStatRatioPowerAttr, Stat.SPD)
       .ballBombMove(),