diff --git a/src/main/java/com/example/CatchStudy/service/ChatService.java b/src/main/java/com/example/CatchStudy/service/ChatService.java
index a8d1c6b..4d3202c 100644
--- a/src/main/java/com/example/CatchStudy/service/ChatService.java
+++ b/src/main/java/com/example/CatchStudy/service/ChatService.java
@@ -105,7 +105,7 @@ public MessageResponseDto createMessage(long chatRoomId, MessageRequestDto messa
 
     @EventListener
     public void handleSessionConnect(SessionConnectEvent event) {
-        long chatRoomId = Long.parseLong((String) event.getMessage().getHeaders().get("simpDestination"));
+        long chatRoomId = Long.parseLong((String) event.getMessage().getHeaders().get("chatRoomId"));
         long userId = usersService.getCurrentUserId();
 
         List<Long> userList = chatRoomMap.get(chatRoomId);
@@ -117,7 +117,7 @@ public void handleSessionConnect(SessionConnectEvent event) {
 
     @EventListener
     public void handleSessionDisconnect(SessionDisconnectEvent event) {
-        long chatRoomId = Long.parseLong((String) event.getMessage().getHeaders().get("simpDestination"));
+        long chatRoomId = Long.parseLong((String) event.getMessage().getHeaders().get("chatRoomId"));
         long userId = usersService.getCurrentUserId();
 
         List<Long> userList = chatRoomMap.get(chatRoomId);