diff --git a/src/Middleware/HealthChecks/ref/Microsoft.AspNetCore.Diagnostics.HealthChecks.netcoreapp3.0.cs b/src/Middleware/HealthChecks/ref/Microsoft.AspNetCore.Diagnostics.HealthChecks.netcoreapp3.0.cs
index 9c1533b82c..ef9b87f063 100644
--- a/src/Middleware/HealthChecks/ref/Microsoft.AspNetCore.Diagnostics.HealthChecks.netcoreapp3.0.cs
+++ b/src/Middleware/HealthChecks/ref/Microsoft.AspNetCore.Diagnostics.HealthChecks.netcoreapp3.0.cs
@@ -16,6 +16,7 @@ namespace Microsoft.AspNetCore.Builder
     {
         public static Microsoft.AspNetCore.Builder.IEndpointConventionBuilder MapHealthChecks(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder builder, string pattern) { throw null; }
         public static Microsoft.AspNetCore.Builder.IEndpointConventionBuilder MapHealthChecks(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder builder, string pattern, Microsoft.AspNetCore.Diagnostics.HealthChecks.HealthCheckOptions options) { throw null; }
+        public static Microsoft.AspNetCore.Builder.IEndpointConventionBuilder MapHealthChecks(this Microsoft.AspNetCore.Routing.IEndpointRouteBuilder builder, string pattern, Microsoft.AspNetCore.Diagnostics.HealthChecks.HealthCheckOptions options, string displayName) { throw null; }
     }
 }
 namespace Microsoft.AspNetCore.Diagnostics.HealthChecks