diff --git a/src/Umbraco.Core/Models/Rdbms/RelationTypeDto.cs b/src/Umbraco.Core/Models/Rdbms/RelationTypeDto.cs
index 5748fb7eff..8a6eb5c02a 100644
--- a/src/Umbraco.Core/Models/Rdbms/RelationTypeDto.cs
+++ b/src/Umbraco.Core/Models/Rdbms/RelationTypeDto.cs
@@ -9,8 +9,10 @@ namespace Umbraco.Core.Models.Rdbms
     [ExplicitColumns]
     internal class RelationTypeDto
     {
+        public const int NodeIdSeed = 3;
+
         [Column("id")]
-        [PrimaryKeyColumn(IdentitySeed = 3)]
+        [PrimaryKeyColumn(IdentitySeed = NodeIdSeed)]
         public int Id { get; set; }
 
         [Column("dual")]
diff --git a/src/Umbraco.Tests/Persistence/Repositories/DataTypeDefinitionRepositoryTest.cs b/src/Umbraco.Tests/Persistence/Repositories/DataTypeDefinitionRepositoryTest.cs
index 6b71158ec6..f32d0e57f9 100644
--- a/src/Umbraco.Tests/Persistence/Repositories/DataTypeDefinitionRepositoryTest.cs
+++ b/src/Umbraco.Tests/Persistence/Repositories/DataTypeDefinitionRepositoryTest.cs
@@ -376,7 +376,7 @@ namespace Umbraco.Tests.Persistence.Repositories
 
             Func<DataTypeDefinitionRepository> creator = () => new DataTypeDefinitionRepository(
                 unitOfWork, NullCacheProvider.Current,
-                CacheHelper.CreateDisabledCacheHelper(),
+                cache,
                 Mock.Of<ILogger>(),
                 new ContentTypeRepository(unitOfWork, NullCacheProvider.Current, Mock.Of<ILogger>(),
                     new TemplateRepository(unitOfWork, Mock.Of<IRepositoryCacheProvider>(), Mock.Of<ILogger>(), Mock.Of<IFileSystem>(), Mock.Of<IFileSystem>(), Mock.Of<ITemplatesSection>())));
@@ -415,7 +415,7 @@ namespace Umbraco.Tests.Persistence.Repositories
 
             Func<DataTypeDefinitionRepository> creator = () => new DataTypeDefinitionRepository(
                 unitOfWork, NullCacheProvider.Current,
-                CacheHelper.CreateDisabledCacheHelper(),
+                cache,
                 Mock.Of<ILogger>(),
                 new ContentTypeRepository(unitOfWork, NullCacheProvider.Current, Mock.Of<ILogger>(),
                     new TemplateRepository(unitOfWork, Mock.Of<IRepositoryCacheProvider>(), Mock.Of<ILogger>(), Mock.Of<IFileSystem>(), Mock.Of<IFileSystem>(), Mock.Of<ITemplatesSection>())));
diff --git a/src/Umbraco.Tests/Persistence/Repositories/RelationRepositoryTest.cs b/src/Umbraco.Tests/Persistence/Repositories/RelationRepositoryTest.cs
index 290fef4122..c899e915fb 100644
--- a/src/Umbraco.Tests/Persistence/Repositories/RelationRepositoryTest.cs
+++ b/src/Umbraco.Tests/Persistence/Repositories/RelationRepositoryTest.cs
@@ -232,9 +232,9 @@ namespace Umbraco.Tests.Persistence.Repositories
             RelationTypeRepository repositoryType;
             using (var repository = CreateRepository(unitOfWork, out repositoryType))
             {
-
+                
                 // Act
-                var query = Query<IRelation>.Builder.Where(x => x.RelationTypeId == 2);
+                var query = Query<IRelation>.Builder.Where(x => x.RelationTypeId == RelationTypeDto.NodeIdSeed);
                 var relations = repository.GetByQuery(query);
 
                 // Assert
diff --git a/src/Umbraco.Tests/Persistence/Repositories/RelationTypeRepositoryTest.cs b/src/Umbraco.Tests/Persistence/Repositories/RelationTypeRepositoryTest.cs
index 7d52b1c6cc..3925aa1616 100644
--- a/src/Umbraco.Tests/Persistence/Repositories/RelationTypeRepositoryTest.cs
+++ b/src/Umbraco.Tests/Persistence/Repositories/RelationTypeRepositoryTest.cs
@@ -5,6 +5,7 @@ using NUnit.Framework;
 using Umbraco.Core;
 using Umbraco.Core.Logging;
 using Umbraco.Core.Models;
+using Umbraco.Core.Models.Rdbms;
 using Umbraco.Core.Persistence;
 using Umbraco.Core.Persistence.Caching;
 using Umbraco.Core.Persistence.Querying;
@@ -125,7 +126,7 @@ namespace Umbraco.Tests.Persistence.Repositories
             {
 
                 // Act
-                var relationType = repository.Get(2);
+                var relationType = repository.Get(RelationTypeDto.NodeIdSeed);
 
                 // Assert
                 Assert.That(relationType, Is.Not.Null);
@@ -151,7 +152,7 @@ namespace Umbraco.Tests.Persistence.Repositories
                 Assert.That(relationTypes, Is.Not.Null);
                 Assert.That(relationTypes.Any(), Is.True);
                 Assert.That(relationTypes.Any(x => x == null), Is.False);
-                Assert.That(relationTypes.Count(), Is.EqualTo(3));
+                Assert.That(relationTypes.Count(), Is.EqualTo(4));
             }
         }
 
@@ -208,7 +209,7 @@ namespace Umbraco.Tests.Persistence.Repositories
                 int count = repository.Count(query);
 
                 // Assert
-                Assert.That(count, Is.EqualTo(3));
+                Assert.That(count, Is.EqualTo(4));
             }
         }