diff --git a/ServerExplorer/UI/FrmServidores.cs b/ServerExplorer/UI/FrmServidores.cs
index 71969b1..f809bb1 100644
--- a/ServerExplorer/UI/FrmServidores.cs
+++ b/ServerExplorer/UI/FrmServidores.cs
@@ -113,7 +113,7 @@ namespace ServerExplorer.UI
             {
                 // Construir cadena de conexion final
                 SqlConnectionStringBuilder constructor = new SqlConnectionStringBuilder();
-                constructor.DataSource = txtServidor.Text;
+                constructor.DataSource = (!string.IsNullOrEmpty(txtServidor.Text)) ? txtServidor.Text : "localhost";
                 constructor.InitialCatalog = (String)lsvBBDD.SelectedItems[0].SubItems[0].Text;
                 if (txtUsuario.Text.CompareTo("") == 0)
                 {