diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelper.cs
index 268e5acf6d..fdab58203a 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelper.cs
@@ -38,7 +38,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
 
         public bool SuppressLabel { get; set; }
 
-        public CheckBoxHiddenInputRenderMode CheckBoxHiddenInputRenderMode { get; set; }
+        public CheckBoxHiddenInputRenderMode? CheckBoxHiddenInputRenderMode { get; set; }
 
         public AbpInputTagHelper(AbpInputTagHelperService tagHelperService)
             : base(tagHelperService)
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs
index 90dbc5f198..6dc050b118 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Form/AbpInputTagHelperService.cs
@@ -30,9 +30,9 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Form
         {
             var (innerHtml, isCheckBox) = await GetFormInputGroupAsHtmlAsync(context, output);
 
-            if (isCheckBox)
+            if (isCheckBox && TagHelper.CheckBoxHiddenInputRenderMode.HasValue)
             {
-                TagHelper.ViewContext.CheckBoxHiddenInputRenderMode = TagHelper.CheckBoxHiddenInputRenderMode;
+                TagHelper.ViewContext.CheckBoxHiddenInputRenderMode = TagHelper.CheckBoxHiddenInputRenderMode.Value;
             }
 
             var order = TagHelper.AspFor.ModelExplorer.GetDisplayOrder();