diff --git a/modules/cms-kit/src/Volo.CmsKit.Public.Application/Volo/CmsKit/Public/Contents/ContentPublicAppService.cs b/modules/cms-kit/src/Volo.CmsKit.Public.Application/Volo/CmsKit/Public/Contents/ContentPublicAppService.cs
index f00f2bdb2d..0fc31e1b4b 100644
--- a/modules/cms-kit/src/Volo.CmsKit.Public.Application/Volo/CmsKit/Public/Contents/ContentPublicAppService.cs
+++ b/modules/cms-kit/src/Volo.CmsKit.Public.Application/Volo/CmsKit/Public/Contents/ContentPublicAppService.cs
@@ -5,7 +5,7 @@ namespace Volo.CmsKit.Public.Contents
 {
     public class ContentPublicAppService : CmsKitAppServiceBase, IContentAppService
     {
-        protected readonly IContentRepository ContentRepository;
+        protected IContentRepository ContentRepository { get; }
 
         public ContentPublicAppService(IContentRepository contentRepository)
         {