diff --git a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/Startup.cs b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/Startup.cs
index e35159da34..e8ece5fa83 100644
--- a/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/Startup.cs
+++ b/src/Microsoft.AspNetCore.Blazor.Templates/content/BlazorHosted.CSharp/BlazorHosted.CSharp.Server/Startup.cs
@@ -1,6 +1,7 @@
 // Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
+using Microsoft.AspNetCore.Blazor.Server;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.ResponseCompression;
@@ -24,8 +25,11 @@ namespace BlazorHosted.CSharp.Server
 
             services.AddResponseCompression(options =>
             {
-                options.MimeTypes = ResponseCompressionDefaults.MimeTypes
-                    .Concat(new[] { MediaTypeNames.Application.Octet });
+                options.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(new[]
+                {
+                    MediaTypeNames.Application.Octet,
+                    WasmMediaTypeNames.Application.Wasm,
+                });
             });
         }