diff --git a/src/Umbraco.Core/Persistence/Repositories/TemplateRepository.cs b/src/Umbraco.Core/Persistence/Repositories/TemplateRepository.cs
index 372f0571a0..edb5e7b75d 100644
--- a/src/Umbraco.Core/Persistence/Repositories/TemplateRepository.cs
+++ b/src/Umbraco.Core/Persistence/Repositories/TemplateRepository.cs
@@ -153,6 +153,7 @@ namespace Umbraco.Core.Persistence.Repositories
                            {
                                "DELETE FROM umbracoUser2NodeNotify WHERE nodeId = @Id",
                                "DELETE FROM umbracoUser2NodePermission WHERE nodeId = @Id",
+                               "UPDATE cmsDocument SET templateId = NULL WHERE nodeId = @Id",
                                "DELETE FROM cmsDocumentType WHERE templateNodeId = @Id",
                                "DELETE FROM cmsTemplate WHERE nodeId = @Id",
                                "DELETE FROM umbracoNode WHERE id = @Id"