diff --git a/nflg-mobilebroken-cfs-app/src/main/java/com/nflg/mobilebroken/cfs/controller/TicketController.java b/nflg-mobilebroken-cfs-app/src/main/java/com/nflg/mobilebroken/cfs/controller/TicketController.java
index 23c4ce6d..bee91b4b 100644
--- a/nflg-mobilebroken-cfs-app/src/main/java/com/nflg/mobilebroken/cfs/controller/TicketController.java
+++ b/nflg-mobilebroken-cfs-app/src/main/java/com/nflg/mobilebroken/cfs/controller/TicketController.java
@@ -308,7 +308,7 @@ public class TicketController extends ControllerBase {
         Set<String> notReadeds = new LinkedHashSet<>();
         if (CollectionUtil.isEmpty(readeds)) {
             notReadeds = messageVOS.stream()
-                    .filter(m -> !Objects.equals(m.getSenderId(), userId))
+                    .filter(m ->Objects.nonNull(m.getId()) && !Objects.equals(m.getSenderId(), userId))
                     .map(ChatMessageVO::getId)
                     .collect(Collectors.toSet());
         } else {