diff --git a/src/Umbraco.Cms.Api.Management/Controllers/DocumentType/ByKeyDocumentTypeController.cs b/src/Umbraco.Cms.Api.Management/Controllers/DocumentType/ByKeyDocumentTypeController.cs
index 54492f875f..06135fc9d9 100644
--- a/src/Umbraco.Cms.Api.Management/Controllers/DocumentType/ByKeyDocumentTypeController.cs
+++ b/src/Umbraco.Cms.Api.Management/Controllers/DocumentType/ByKeyDocumentTypeController.cs
@@ -22,7 +22,7 @@ public class ByKeyDocumentTypeController : DocumentTypeControllerBase
     [MapToApiVersion("1.0")]
     [ProducesResponseType(typeof(DocumentTypeViewModel), StatusCodes.Status200OK)]
     [ProducesResponseType(StatusCodes.Status404NotFound)]
-    public async Task<ActionResult<DocumentTypeViewModel>> ByKey(Guid key)
+    public async Task<IActionResult> ByKey(Guid key)
     {
         IContentType? contentType = _contentTypeService.Get(key);
         if (contentType == null)