diff --git a/dictation_server/src/features/files/files.service.ts b/dictation_server/src/features/files/files.service.ts
index f6a023c..3d0084a 100644
--- a/dictation_server/src/features/files/files.service.ts
+++ b/dictation_server/src/features/files/files.service.ts
@@ -611,7 +611,7 @@ export class FilesService {
         }
       }
 
-      const filePath = `${file.file_name}`;
+      const filePath = `${file.raw_file_name}`;
 
       const isFileExist = await this.blobStorageService.fileExists(
         context,
@@ -623,7 +623,7 @@ export class FilesService {
       if (!isFileExist) {
         this.logger.log(`[${context.getTrackingId()}] filePath:${filePath}`);
         throw new AudioFileNotFoundError(
-          `Audio file is not exists in blob storage. audio_file_id:${audioFileId}, url:${file.url}, fileName:${file.file_name}`,
+          `Audio file is not exists in blob storage. audio_file_id:${audioFileId}, url:${file.url}, fileName:${filePath}`,
         );
       }
 
diff --git a/dictation_server/src/features/tasks/tasks.service.spec.ts b/dictation_server/src/features/tasks/tasks.service.spec.ts
index 0799356..5fe8662 100644
--- a/dictation_server/src/features/tasks/tasks.service.spec.ts
+++ b/dictation_server/src/features/tasks/tasks.service.spec.ts
@@ -4415,7 +4415,7 @@ describe('deleteTask', () => {
         context,
         account.id,
         account.country,
-        'x.zip',
+        'y.zip',
       );
     }
   });
@@ -4500,7 +4500,7 @@ describe('deleteTask', () => {
         context,
         account.id,
         account.country,
-        'x.zip',
+        'y.zip',
       );
     }
   });
diff --git a/dictation_server/src/features/tasks/tasks.service.ts b/dictation_server/src/features/tasks/tasks.service.ts
index 11b42ea..871d83f 100644
--- a/dictation_server/src/features/tasks/tasks.service.ts
+++ b/dictation_server/src/features/tasks/tasks.service.ts
@@ -932,7 +932,7 @@ export class TasksService {
         Object.values(TASK_STATUS),
       );
 
-      const targetFileName = task.file?.file_name;
+      const targetFileName = task.file?.raw_file_name;
       if (!targetFileName) {
         throw new Error(`target file not found. audioFileId: ${audioFileId}`);
       }
diff --git a/dictation_server/src/features/tasks/test/utility.ts b/dictation_server/src/features/tasks/test/utility.ts
index 6a1e024..31928e0 100644
--- a/dictation_server/src/features/tasks/test/utility.ts
+++ b/dictation_server/src/features/tasks/test/utility.ts
@@ -120,6 +120,7 @@ export const createTask = async (
       owner_user_id: owner_user_id,
       url: '',
       file_name: 'x.zip',
+      raw_file_name: 'y.zip',
       author_id: author_id,
       work_type_id: work_type_id,
       started_at: new Date(),
diff --git a/dictation_server/src/repositories/tasks/tasks.repository.service.ts b/dictation_server/src/repositories/tasks/tasks.repository.service.ts
index d712597..4a1e484 100644
--- a/dictation_server/src/repositories/tasks/tasks.repository.service.ts
+++ b/dictation_server/src/repositories/tasks/tasks.repository.service.ts
@@ -854,6 +854,7 @@ export class TasksRepositoryService {
     audioFile.owner_user_id = owner_user_id;
     audioFile.url = url;
     audioFile.file_name = file_name;
+    audioFile.raw_file_name = file_name;
     audioFile.author_id = author_id;
     audioFile.work_type_id = work_type_id;
     audioFile.started_at = started_at;