diff --git a/src/main/java/clap/server/domain/model/task/Task.java b/src/main/java/clap/server/domain/model/task/Task.java
index ddb96bca..d3b80a16 100644
--- a/src/main/java/clap/server/domain/model/task/Task.java
+++ b/src/main/java/clap/server/domain/model/task/Task.java
@@ -117,6 +117,7 @@ public void cancelTask(Long requesterId) {
             throw new DomainException(NOT_A_REQUESTER);
         }
         this.taskStatus = TaskStatus.TERMINATED;
+        this.isDeleted = true;
         this.finishedAt = LocalDateTime.now();
     }
 }