diff --git a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
index 916455bc47..56e8d4a77e 100644
--- a/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
+++ b/modules/blogging/src/Volo.Blogging.Application/Volo/Blogging/Posts/PostAppService.cs
@@ -156,7 +156,7 @@ namespace Volo.Blogging.Posts
             var post = new Post(
                 id: GuidGenerator.Create(),
                 blogId: input.BlogId,
-                creatorId: CurrentUser.GetId(),
+                creatorId: CurrentUser.Id,
                 title: input.Title,
                 coverImage: input.CoverImage,
                 url: input.Url
diff --git a/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Posts/Post.cs b/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Posts/Post.cs
index 8e4a898ce4..92aea09d34 100644
--- a/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Posts/Post.cs
+++ b/modules/blogging/src/Volo.Blogging.Domain/Volo/Blogging/Posts/Post.cs
@@ -33,7 +33,7 @@ namespace Volo.Blogging.Posts
             
         }
 
-        public Post(Guid id, Guid blogId, Guid creatorId, [NotNull] string title, [NotNull] string coverImage, [NotNull] string url)
+        public Post(Guid id, Guid blogId, Guid? creatorId, [NotNull] string title, [NotNull] string coverImage, [NotNull] string url)
         {
             Id = id;
             CreatorId = creatorId;