diff --git a/src/Volo.Abp.MemoryDb/Volo/Abp/MemoryDb/AbpMemoryDbModule.cs b/src/Volo.Abp.MemoryDb/Volo/Abp/MemoryDb/AbpMemoryDbModule.cs
index 341d4d1e27..e9501fbf32 100644
--- a/src/Volo.Abp.MemoryDb/Volo/Abp/MemoryDb/AbpMemoryDbModule.cs
+++ b/src/Volo.Abp.MemoryDb/Volo/Abp/MemoryDb/AbpMemoryDbModule.cs
@@ -6,6 +6,9 @@ using Volo.Abp.Uow.MemoryDb;
 
 namespace Volo.Abp.MemoryDb
 {
+    /* TODO: Consider to store objects as binary serialized in the memory, which makes unit tests more realistic.
+     */
+
     [DependsOn(typeof(AbpDddDomainModule))]
     public class AbpMemoryDbModule : AbpModule
     {