diff --git a/server/src/dtos/asset-v1.dto.ts b/server/src/dtos/asset-v1.dto.ts
index 50ff3d18b..7a12639ce 100644
--- a/server/src/dtos/asset-v1.dto.ts
+++ b/server/src/dtos/asset-v1.dto.ts
@@ -2,6 +2,7 @@ import { ApiProperty } from '@nestjs/swagger';
 import { Type } from 'class-transformer';
 import { ArrayNotEmpty, IsArray, IsEnum, IsInt, IsNotEmpty, IsString, IsUUID, ValidateNested } from 'class-validator';
 import { UploadFieldName } from 'src/dtos/asset.dto';
+import { ImageFormat } from 'src/entities/system-config.entity';
 import { Optional, ValidateBoolean, ValidateDate, ValidateUUID } from 'src/validation';
 
 export class AssetBulkUploadCheckItem {
@@ -112,22 +113,17 @@ export class CreateAssetDto {
   [UploadFieldName.SIDECAR_DATA]?: any;
 }
 
-export enum GetAssetThumbnailFormatEnum {
-  JPEG = 'JPEG',
-  WEBP = 'WEBP',
-}
-
 export class GetAssetThumbnailDto {
   @Optional()
-  @IsEnum(GetAssetThumbnailFormatEnum)
+  @IsEnum(ImageFormat)
   @ApiProperty({
     type: String,
-    enum: GetAssetThumbnailFormatEnum,
-    default: GetAssetThumbnailFormatEnum.WEBP,
+    enum: ImageFormat,
+    default: ImageFormat.WEBP,
     required: false,
     enumName: 'ThumbnailFormat',
   })
-  format: GetAssetThumbnailFormatEnum = GetAssetThumbnailFormatEnum.WEBP;
+  format: ImageFormat = ImageFormat.WEBP;
 }
 
 export class SearchPropertiesDto {
diff --git a/server/src/services/asset-v1.service.ts b/server/src/services/asset-v1.service.ts
index 97aa99d91..8e2785d85 100644
--- a/server/src/services/asset-v1.service.ts
+++ b/server/src/services/asset-v1.service.ts
@@ -22,12 +22,12 @@ import {
   CheckExistingAssetsDto,
   CreateAssetDto,
   GetAssetThumbnailDto,
-  GetAssetThumbnailFormatEnum,
   ServeFileDto,
 } from 'src/dtos/asset-v1.dto';
 import { AuthDto } from 'src/dtos/auth.dto';
 import { ASSET_CHECKSUM_CONSTRAINT, AssetEntity, AssetType } from 'src/entities/asset.entity';
 import { LibraryType } from 'src/entities/library.entity';
+import { ImageFormat } from 'src/entities/system-config.entity';
 import { IAccessRepository } from 'src/interfaces/access.interface';
 import { IAssetRepositoryV1 } from 'src/interfaces/asset-v1.interface';
 import { IAssetRepository } from 'src/interfaces/asset.interface';
@@ -244,15 +244,15 @@ export class AssetServiceV1 {
     };
   }
 
-  private getThumbnailPath(asset: AssetEntity, format: GetAssetThumbnailFormatEnum) {
+  private getThumbnailPath(asset: AssetEntity, format: ImageFormat) {
     switch (format) {
-      case GetAssetThumbnailFormatEnum.WEBP: {
+      case ImageFormat.WEBP: {
         if (asset.thumbnailPath) {
           return asset.thumbnailPath;
         }
         this.logger.warn(`WebP thumbnail requested but not found for asset ${asset.id}, falling back to JPEG`);
       }
-      case GetAssetThumbnailFormatEnum.JPEG: {
+      case ImageFormat.JPEG: {
         if (!asset.previewPath) {
           throw new NotFoundException(`No thumbnail found for asset ${asset.id}`);
         }