diff --git a/src/Microsoft.AspNetCore.Routing/Metadata/HttpMethodMetadata.cs b/src/Microsoft.AspNetCore.Routing/Metadata/HttpMethodMetadata.cs
index 2dc98a5a12..af342a2f36 100644
--- a/src/Microsoft.AspNetCore.Routing/Metadata/HttpMethodMetadata.cs
+++ b/src/Microsoft.AspNetCore.Routing/Metadata/HttpMethodMetadata.cs
@@ -8,7 +8,7 @@ using System.Linq;
 
 namespace Microsoft.AspNetCore.Routing.Metadata
 {
-    [DebuggerDisplay("{DebuggerToString,nq}")]
+    [DebuggerDisplay("{DebuggerToString(),nq}")]
     public sealed class HttpMethodMetadata : IHttpMethodMetadata
     {
         public HttpMethodMetadata(IEnumerable<string> httpMethods)