diff --git a/EnvelopeGenerator.API/Controllers/AuthController.cs b/EnvelopeGenerator.API/Controllers/AuthController.cs
index 6a3500c9..b6044216 100644
--- a/EnvelopeGenerator.API/Controllers/AuthController.cs
+++ b/EnvelopeGenerator.API/Controllers/AuthController.cs
@@ -69,7 +69,7 @@ public partial class AuthController(IOptions<AuthTokenKeys> authTokenKeyOptions,
     [ProducesResponseType(typeof(void), StatusCodes.Status200OK)]
     [ProducesResponseType(typeof(void), StatusCodes.Status401Unauthorized)]
     [HttpGet("check")]
-    [Authorize]
+    [Authorize(AuthenticationSchemes = AuthScheme.Sender)]
     public IActionResult Check(string? role = null)
         => role is not null && !User.IsInRole(role)
             ? Unauthorized()