diff --git a/Jellyfin.Api/Controllers/LibraryStructureController.cs b/Jellyfin.Api/Controllers/LibraryStructureController.cs
index 2a885662b5..6c5dd833e3 100644
--- a/Jellyfin.Api/Controllers/LibraryStructureController.cs
+++ b/Jellyfin.Api/Controllers/LibraryStructureController.cs
@@ -75,7 +75,9 @@ public class LibraryStructureController : BaseJellyfinApiController
     [HttpPost]
     [ProducesResponseType(StatusCodes.Status204NoContent)]
     public async Task<ActionResult> AddVirtualFolder(
-        [FromQuery] string name,
+        [FromQuery]
+        [RegularExpression(@"^(?:\S(?:.*\S)?)$", ErrorMessage = "Library name cannot be empty or have leading/trailing spaces.")]
+        string name,
         [FromQuery] CollectionTypeOptions? collectionType,
         [FromQuery, ModelBinder(typeof(CommaDelimitedCollectionModelBinder))] string[] paths,
         [FromBody] AddVirtualFolderDto? libraryOptionsDto,