diff --git a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
index caa22424e7..41c8f43ddd 100644
--- a/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
+++ b/modules/blogging/src/Volo.Blogging.Web/Pages/Blogs/Posts/New.cshtml.cs
@@ -42,7 +42,7 @@ namespace Volo.Blogging.Pages.Blog.Posts
             {
                 return Redirect("/");
             }
-            if (BlogNameControlHelper.IsFileFormat(BlogShortName))
+            if (BlogNameControlHelper.IsProhibitedFileFormatName(BlogShortName))
             {
                 return NotFound();
             }