diff --git a/src/Umbraco.Core/Persistence/Repositories/Implement/DocumentRepository.cs b/src/Umbraco.Core/Persistence/Repositories/Implement/DocumentRepository.cs
index 02392002a2..00c50adb4f 100644
--- a/src/Umbraco.Core/Persistence/Repositories/Implement/DocumentRepository.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/Implement/DocumentRepository.cs
@@ -605,7 +605,7 @@ namespace Umbraco.Core.Persistence.Repositories.Implement
             else if (content.PublishedState == PublishedState.Unpublishing)
             {
                 content.Published = false;
-                content.PublishTemplateId = 0;
+                content.PublishTemplateId = null;
                 content.PublisherId = null;
                 content.PublishName = null;
                 content.PublishDate = null;