diff --git a/src/libraries/Common/src/Roslyn/DiagnosticDescriptorHelper.cs b/src/libraries/Common/src/Roslyn/DiagnosticDescriptorHelper.cs
index d11fdd8b5aaa03..8c5783ff9bd0b4 100644
--- a/src/libraries/Common/src/Roslyn/DiagnosticDescriptorHelper.cs
+++ b/src/libraries/Common/src/Roslyn/DiagnosticDescriptorHelper.cs
@@ -17,7 +17,7 @@ public static DiagnosticDescriptor Create(
             LocalizableString? description = null,
             params string[] customTags)
         {
-            string helpLink = $"https://learn.microsoft.com/dotnet/fundamentals/syslib-diagnostics/{id.ToLowerInvariant()}.md";
+            string helpLink = $"https://learn.microsoft.com/dotnet/fundamentals/syslib-diagnostics/{id.ToLowerInvariant()}";
 
             return new DiagnosticDescriptor(id, title, messageFormat, category, defaultSeverity, isEnabledByDefault, description, helpLink, customTags);
         }