diff --git a/src/Microsoft.AspNet.Identity/IdentityBuilder.cs b/src/Microsoft.AspNet.Identity/IdentityBuilder.cs
index 3481b848bd..a6214cce5b 100644
--- a/src/Microsoft.AspNet.Identity/IdentityBuilder.cs
+++ b/src/Microsoft.AspNet.Identity/IdentityBuilder.cs
@@ -16,6 +16,13 @@ namespace Microsoft.AspNet.Identity
             Services = services;
         }
 
+        public IdentityBuilder<TUser, TRole> AddInstance<TService>(TService instance)
+            where TService : class
+        {
+            Services.AddInstance(instance);
+            return this;
+        }
+
         public IdentityBuilder<TUser, TRole> AddUserStore(IUserStore<TUser> store)
         {
             return AddInstance(store);
@@ -58,12 +65,5 @@ namespace Microsoft.AspNet.Identity
             Services.AddScoped<TManager>();
             return this;
         }
-
-        private IdentityBuilder<TUser, TRole> AddInstance<TService>(TService instance)
-            where TService : class
-        {
-            Services.AddInstance(instance);
-            return this;
-        }
     }
 }
\ No newline at end of file
diff --git a/test/Microsoft.AspNet.Identity.Test/IdentityBuilderTest.cs b/test/Microsoft.AspNet.Identity.Test/IdentityBuilderTest.cs
index dcea443aea..5ce7b7ce57 100644
--- a/test/Microsoft.AspNet.Identity.Test/IdentityBuilderTest.cs
+++ b/test/Microsoft.AspNet.Identity.Test/IdentityBuilderTest.cs
@@ -52,6 +52,7 @@ namespace Microsoft.AspNet.Identity.Test
         }
 
         private static void CanOverride<TService>(TService instance)
+            where TService : class
         {
             var services = new ServiceCollection();
             services.AddIdentity<IdentityUser>().AddInstance(instance);