diff --git a/src/NzbDrone.Integration.Test/IntegrationTestBase.cs b/src/NzbDrone.Integration.Test/IntegrationTestBase.cs
index f1e3b31dc..66a701312 100644
--- a/src/NzbDrone.Integration.Test/IntegrationTestBase.cs
+++ b/src/NzbDrone.Integration.Test/IntegrationTestBase.cs
@@ -274,6 +274,7 @@ namespace NzbDrone.Integration.Test
 
             if (changed)
             {
+                result.NextBook = result.LastBook = null;
                 Author.Put(result);
             }
 
diff --git a/src/Readarr.Api.V1/Author/AuthorController.cs b/src/Readarr.Api.V1/Author/AuthorController.cs
index ff1c933d3..c12351c16 100644
--- a/src/Readarr.Api.V1/Author/AuthorController.cs
+++ b/src/Readarr.Api.V1/Author/AuthorController.cs
@@ -193,8 +193,8 @@ namespace Readarr.Api.V1.Author
 
             foreach (var authorResource in authors)
             {
-                authorResource.NextBook = nextBooks.FirstOrDefault(x => x.AuthorMetadataId == authorResource.AuthorMetadataId).ToResource();
-                authorResource.LastBook = lastBooks.FirstOrDefault(x => x.AuthorMetadataId == authorResource.AuthorMetadataId).ToResource();
+                authorResource.NextBook = nextBooks.FirstOrDefault(x => x.AuthorMetadataId == authorResource.AuthorMetadataId);
+                authorResource.LastBook = lastBooks.FirstOrDefault(x => x.AuthorMetadataId == authorResource.AuthorMetadataId);
             }
         }
 
diff --git a/src/Readarr.Api.V1/Author/AuthorResource.cs b/src/Readarr.Api.V1/Author/AuthorResource.cs
index 9020041ab..d0956799f 100644
--- a/src/Readarr.Api.V1/Author/AuthorResource.cs
+++ b/src/Readarr.Api.V1/Author/AuthorResource.cs
@@ -28,8 +28,8 @@ namespace Readarr.Api.V1.Author
         public string Disambiguation { get; set; }
         public List<Links> Links { get; set; }
 
-        public BookResource NextBook { get; set; }
-        public BookResource LastBook { get; set; }
+        public Book NextBook { get; set; }
+        public Book LastBook { get; set; }
 
         public List<MediaCover> Images { get; set; }