diff --git a/src/Tgstation.Server.Host/Security/OAuth/IOAuthProviders.cs b/src/Tgstation.Server.Host/Security/OAuth/IOAuthProviders.cs
index c7e9a06274..2da6651c04 100644
--- a/src/Tgstation.Server.Host/Security/OAuth/IOAuthProviders.cs
+++ b/src/Tgstation.Server.Host/Security/OAuth/IOAuthProviders.cs
@@ -2,8 +2,6 @@
 
 using Tgstation.Server.Api.Models;
 
-#nullable disable
-
 namespace Tgstation.Server.Host.Security.OAuth
 {
 	/// <summary>
@@ -16,7 +14,7 @@ namespace Tgstation.Server.Host.Security.OAuth
 		/// </summary>
 		/// <param name="oAuthProvider">The <see cref="OAuthProvider"/> to get the validator for.</param>
 		/// <returns>The <see cref="IOAuthValidator"/> for <paramref name="oAuthProvider"/>.</returns>
-		IOAuthValidator GetValidator(OAuthProvider oAuthProvider);
+		IOAuthValidator? GetValidator(OAuthProvider oAuthProvider);
 
 		/// <summary>
 		/// Gets a <see cref="Dictionary{TKey, TValue}"/> of the provider client IDs.