diff --git a/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUser.cs b/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUser.cs
index ac0cddbc21..fe039d2b00 100644
--- a/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUser.cs
+++ b/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUser.cs
@@ -12,10 +12,8 @@ namespace Volo.Abp.Identity
 {
     //Add Name and Surname properties?
 
-    public class IdentityUser : AggregateRoot, IHasConcurrencyStamp, IMultiTenant
+    public class IdentityUser : AggregateRoot, IHasConcurrencyStamp
     {
-        public Guid? TenantId { get; protected internal set; }
-
         /// <summary>
         /// Gets or sets the user name for this user.
         /// </summary>
diff --git a/src/Volo.Abp/Volo/Abp/Domain/Entities/IMultiTenant.cs b/src/Volo.Abp/Volo/Abp/MultiTenancy/IMultiTenant.cs
similarity index 74%
rename from src/Volo.Abp/Volo/Abp/Domain/Entities/IMultiTenant.cs
rename to src/Volo.Abp/Volo/Abp/MultiTenancy/IMultiTenant.cs
index ddaea17976..b80bc9304a 100644
--- a/src/Volo.Abp/Volo/Abp/Domain/Entities/IMultiTenant.cs
+++ b/src/Volo.Abp/Volo/Abp/MultiTenancy/IMultiTenant.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace Volo.Abp.Domain.Entities
+namespace Volo.Abp.MultiTenancy
 {
     public interface IMultiTenant
     {