diff --git a/src/Readarr.Api.V1/Queue/QueueModule.cs b/src/Readarr.Api.V1/Queue/QueueModule.cs
index 2f36666ea..bfefc0151 100644
--- a/src/Readarr.Api.V1/Queue/QueueModule.cs
+++ b/src/Readarr.Api.V1/Queue/QueueModule.cs
@@ -119,15 +119,15 @@ private PagingResource<QueueResource> GetQueue(PagingResource<QueueResource> pag
                 case "status":
                     return q => q.Status;
                 case "authors.sortName":
-                    return q => q.Author?.SortName;
+                    return q => q.Author?.SortName ?? string.Empty;
                 case "title":
                     return q => q.Title;
                 case "book":
                     return q => q.Book;
                 case "book.title":
-                    return q => q.Book?.Title;
+                    return q => q.Book?.Title ?? string.Empty;
                 case "book.releaseDate":
-                    return q => q.Book?.ReleaseDate;
+                    return q => q.Book?.ReleaseDate ?? DateTime.MinValue;
                 case "quality":
                     return q => q.Quality;
                 case "progress":