diff --git a/src/Tgstation.Server.Host/Controllers/ConfigurationController.cs b/src/Tgstation.Server.Host/Controllers/ConfigurationController.cs
index cecd5f2c93..3a76b8bc5b 100644
--- a/src/Tgstation.Server.Host/Controllers/ConfigurationController.cs
+++ b/src/Tgstation.Server.Host/Controllers/ConfigurationController.cs
@@ -1,4 +1,4 @@
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using System;
 using System.Collections.Generic;
@@ -291,6 +291,9 @@ namespace Tgstation.Server.Host.Controllers
 			if (directory == null)
 				throw new ArgumentNullException(nameof(directory));
 
+			if (directory.Path == null)
+				return BadRequest(new ErrorMessage(ErrorCode.ModelValidationFailure));
+
 			if (ForbidDueToModeConflicts(directory.Path, out var systemIdentity))
 				return Forbid();