diff --git a/packages/backend/gameserver/src/game/game.service.ts b/packages/backend/gameserver/src/game/game.service.ts
index 7e6945a..3dfd3bc 100644
--- a/packages/backend/gameserver/src/game/game.service.ts
+++ b/packages/backend/gameserver/src/game/game.service.ts
@@ -89,10 +89,7 @@ export class GameService {
     game.votes[voterId] = targetId;
   }
 
-  async processVoteResult(gsid: string): Promise<{
-    voteResult: Record<string, number>;
-    deadPerson: string;
-  }> {
+  async processVoteResult(gsid: string) {
     const game = this.games.get(gsid);
     if (!game) throw new Error('게임을 찾을 수 없습니다.');
 
@@ -125,7 +122,9 @@ export class GameService {
       this.startSpeakingPhase(gsid);
     }
 
-    return { voteResult: voteCount, deadPerson };
+    const isDeadPersonPinoco = deadPerson === game.pinocoId;
+
+    return { voteResult: voteCount, deadPerson, isDeadPersonPinoco };
   }
 
   async submitGuess(gsid: string, word: string): Promise<boolean> {
diff --git a/packages/backend/gameserver/src/gateway/gateway.service.ts b/packages/backend/gameserver/src/gateway/gateway.service.ts
index e87b312..45febc9 100644
--- a/packages/backend/gameserver/src/gateway/gateway.service.ts
+++ b/packages/backend/gameserver/src/gateway/gateway.service.ts
@@ -118,10 +118,7 @@ export class GatewayService {
     await this.gameService.submitVote(gsid, voterId, targetId);
   }
 
-  async processVoteResult(gsid: string): Promise<{
-    voteResult: Record<string, number>;
-    deadPerson: string;
-  }> {
+  async processVoteResult(gsid: string) {
     return await this.gameService.processVoteResult(gsid);
   }