diff --git a/Middleware/LanguageRedirectionMiddleware.cs b/Middleware/LanguageRedirectionMiddleware.cs
index d6851eb..9d5fecc 100644
--- a/Middleware/LanguageRedirectionMiddleware.cs
+++ b/Middleware/LanguageRedirectionMiddleware.cs
@@ -12,7 +12,8 @@ namespace QRRapidoApp.Middleware
         {
             { "pt", "pt-BR" },
             { "pt-br", "pt-BR" },
-            { "es", "es-PY" }
+            { "es", "es-PY" },
+            { "es-py", "es-PY" }
         };
         private const string DefaultCulture = "pt-BR";
 
@@ -91,6 +92,12 @@ namespace QRRapidoApp.Middleware
             var firstSegment = segments[0];
             if (_cultureAliases.TryGetValue(firstSegment, out var mappedCulture))
             {
+                // Don't redirect if already using the canonical culture (case-sensitive check)
+                if (firstSegment == mappedCulture)
+                {
+                    return false;
+                }
+
                 var remainingSegments = segments.Length > 1
                     ? "/" + string.Join('/', segments.Skip(1))
                     : string.Empty;