diff --git a/modules/docs/src/Volo.Docs.Web/TableOfContents/TocGeneratorService.cs b/modules/docs/src/Volo.Docs.Web/TableOfContents/TocGeneratorService.cs
index 2a73b6217b..6142e48669 100644
--- a/modules/docs/src/Volo.Docs.Web/TableOfContents/TocGeneratorService.cs
+++ b/modules/docs/src/Volo.Docs.Web/TableOfContents/TocGeneratorService.cs
@@ -12,12 +12,6 @@ namespace Volo.Docs.TableOfContents;
 public class TocGeneratorService : ITocGeneratorService, ITransientDependency
 {
     public record Heading(int Level, string Text, string Id);
-    public IMarkdownConverter _markdownConverter;
-
-    public TocGeneratorService(IMarkdownConverter markdownConverter)
-    {
-        _markdownConverter = markdownConverter;
-    }
 
     public string GenerateToc(string markdownContent)
     {