diff --git a/src/OrchardCore/OrchardCore.DisplayManagement/Html/HtmlContentString.cs b/src/OrchardCore/OrchardCore.DisplayManagement/Html/HtmlContentString.cs
index 15ea0afe43c..75663cbef69 100644
--- a/src/OrchardCore/OrchardCore.DisplayManagement/Html/HtmlContentString.cs
+++ b/src/OrchardCore/OrchardCore.DisplayManagement/Html/HtmlContentString.cs
@@ -27,7 +27,7 @@ public class HtmlContentString : IHtmlContent
 
         private string DebuggerToString()
         {
-            var writer = new ZStringWriter();
+            using var writer = new ZStringWriter();
             WriteTo(writer, HtmlEncoder.Default);
             return writer.ToString();
         }