diff --git a/src/Radarr.Api.V3/Queue/QueueModule.cs b/src/Radarr.Api.V3/Queue/QueueModule.cs
index 43ce0afcef..a85b896953 100644
--- a/src/Radarr.Api.V3/Queue/QueueModule.cs
+++ b/src/Radarr.Api.V3/Queue/QueueModule.cs
@@ -125,7 +125,7 @@ private PagingResource<QueueResource> GetQueue(PagingResource<QueueResource> pag
                 case "status":
                     return q => q.Status;
                 case "movies.sortTitle":
-                    return q => q.Movie?.SortTitle;
+                    return q => q.Movie?.SortTitle ?? string.Empty;
                 case "title":
                     return q => q.Title;
                 case "languages":