diff --git a/backend/src/Squidex/Areas/Api/Controllers/Assets/AssetsController.cs b/backend/src/Squidex/Areas/Api/Controllers/Assets/AssetsController.cs
index 330cde6e7..d04bcd6cc 100644
--- a/backend/src/Squidex/Areas/Api/Controllers/Assets/AssetsController.cs
+++ b/backend/src/Squidex/Areas/Api/Controllers/Assets/AssetsController.cs
@@ -1,4 +1,4 @@
-// ==========================================================================
+// ==========================================================================
 //  Squidex Headless CMS
 // ==========================================================================
 //  Copyright (c) Squidex UG (haftungsbeschraenkt)
@@ -272,6 +272,7 @@ namespace Squidex.Areas.Api.Controllers.Assets
         [HttpPut]
         [Route("apps/{app}/assets/{id}/content/")]
         [ProducesResponseType(typeof(AssetDto), StatusCodes.Status200OK)]
+        [AssetRequestSizeLimit]
         [ApiPermissionOrAnonymous(Permissions.AppAssetsUpload)]
         [ApiCosts(1)]
         public async Task<IActionResult> PutAssetContent(string app, DomainId id, IFormFile file)