diff --git a/Models/Repositories/PhSCustomerRepository.cs b/Models/Repositories/PhSCustomerRepository.cs
index e5cfd74..624b203 100644
--- a/Models/Repositories/PhSCustomerRepository.cs
+++ b/Models/Repositories/PhSCustomerRepository.cs
@@ -63,10 +63,9 @@ namespace Models.Repositories
             _logger.LogDebug("VALOR RECIBIDO DE 'document': {document}", document);
             if (!string.IsNullOrWhiteSpace(document) && document != "?")
             {
-                var loweredDoc = document.ToLower();
                 query = query.Where(c =>
                     c.PhSCustomerDocuments.Any(a =>
-                        EF.Functions.Like(a.DocumentNumber.ToLower(), $"%{loweredDoc}%")));
+                        EF.Functions.Like(a.DocumentNumber, $"%{document}%")));
             }
             //if (!string.IsNullOrWhiteSpace(email))
             //{