diff --git a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/Extensibility/TableColumns/TableColumn.cs b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/Extensibility/TableColumns/TableColumn.cs
index ce87c4b5a7..eac10dc23b 100644
--- a/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/Extensibility/TableColumns/TableColumn.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Components.WebAssembly/Volo/Abp/AspNetCore/Components/Extensibility/TableColumns/TableColumn.cs
@@ -14,6 +14,7 @@ namespace Volo.Abp.AspNetCore.Components.Extensibility.TableColumns
         [CanBeNull]
         public Type Component { get; set; }
         public List<EntityAction> Actions { get; set; }
+        [CanBeNull]
         public Func<object,string> ValueConverter { get; set; }
 
         public TableColumn()