diff --git a/src/Umbraco.Core/Persistence/Migrations/Initial/BaseDataCreation.cs b/src/Umbraco.Core/Persistence/Migrations/Initial/BaseDataCreation.cs
index 14903b841e..0b2e360467 100644
--- a/src/Umbraco.Core/Persistence/Migrations/Initial/BaseDataCreation.cs
+++ b/src/Umbraco.Core/Persistence/Migrations/Initial/BaseDataCreation.cs
@@ -269,7 +269,6 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
         private void CreateUmbracoRelationTypeData()
         {
             _database.Insert("umbracoRelationType", "id", false, new RelationTypeDto { Id = 1, Alias = Constants.Conventions.Relations.RelateDocumentOnCopy, ChildObjectType = new Guid(Constants.ObjectTypes.Document), ParentObjectType = new Guid(Constants.ObjectTypes.Document), Dual = true, Name = "Relate Document On Copy" });
-            _database.Insert("umbracoRelationType", "id", false, new RelationTypeDto { Id = 2, Alias = Constants.Conventions.Relations.RelateParentDocumentOnDelete, ChildObjectType = new Guid(Constants.ObjectTypes.Document), ParentObjectType = new Guid(Constants.ObjectTypes.Document), Dual = false, Name = "Relate Parent Document On Delete" });
         }
 
         private void CreateCmsTaskTypeData()
diff --git a/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSevenThreeZero/AddRelationTypeForDocumentOnDelete.cs b/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSevenThreeZero/AddRelationTypeForDocumentOnDelete.cs
new file mode 100644
index 0000000000..9268ff4af3
--- /dev/null
+++ b/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSevenThreeZero/AddRelationTypeForDocumentOnDelete.cs
@@ -0,0 +1,26 @@
+using System;
+using Umbraco.Core.Configuration;
+using Umbraco.Core.Models.Rdbms;
+
+namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSevenThreeZero
+{
+    [Migration("7.3.0", 0, GlobalSettings.UmbracoMigrationName)]
+    public class AddRelationTypeForDocumentOnDelete : MigrationBase
+    {
+        public override void Up()
+        {
+            Execute.Code(AddRelationType);
+        }
+
+        public static string AddRelationType(Database database)
+        {
+            database.Insert("umbracoRelationType", "id", false, new RelationTypeDto { Id = 2, Alias = Constants.Conventions.Relations.RelateParentDocumentOnDelete, ChildObjectType = new Guid(Constants.ObjectTypes.Document), ParentObjectType = new Guid(Constants.ObjectTypes.Document), Dual = false, Name = "Relate Parent Document On Delete" });
+
+            return string.Empty;
+        }
+
+        public override void Down()
+        {
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Umbraco.Core/Umbraco.Core.csproj b/src/Umbraco.Core/Umbraco.Core.csproj
index da47e24a80..c2aff8259e 100644
--- a/src/Umbraco.Core/Umbraco.Core.csproj
+++ b/src/Umbraco.Core/Umbraco.Core.csproj
@@ -390,6 +390,7 @@
     <Compile Include="Persistence\Mappers\TagMapper.cs" />
     <Compile Include="Persistence\Mappers\TemplateMapper.cs" />
     <Compile Include="Persistence\Migrations\DataLossException.cs" />
+    <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSevenThreeZero\AddRelationTypeForDocumentOnDelete.cs" />
     <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSevenTwoZero\AddMissingForeignKeyForContentType.cs" />
     <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSevenTwoZero\AlterDataTypePreValueTable.cs" />
     <Compile Include="Persistence\Migrations\Upgrades\TargetVersionSevenOneZero\AssignMissingPrimaryForMySqlKeys.cs" />