diff --git a/src/Tgstation.Server.Host/Core/Application.cs b/src/Tgstation.Server.Host/Core/Application.cs
index 2920cbaf2f..f1da266b76 100644
--- a/src/Tgstation.Server.Host/Core/Application.cs
+++ b/src/Tgstation.Server.Host/Core/Application.cs
@@ -173,6 +173,7 @@ namespace Tgstation.Server.Host.Core
 				.AddMvc(options =>
 				{
 					options.EnableEndpointRouting = false;
+					options.ReturnHttpNotAcceptable = true;
 				})
 				.AddNewtonsoftJson(options =>
 				{