diff --git a/Ventas/Clientes.aspx.vb b/Ventas/Clientes.aspx.vb
index f39cd9c06..b94dd2072 100644
--- a/Ventas/Clientes.aspx.vb
+++ b/Ventas/Clientes.aspx.vb
@@ -9761,7 +9761,7 @@ Partial Class Clientes
         Dim IVAFactura As Decimal = TmpDT.SUMD("ImporteIVA")
 
         Dim Folio As Integer = -1
-        Dim Serie As String = "-1"
+        Dim Serie As String = ""
 
         'If FolioNotaCredito(Tipo) Then
         '    Folio = FolioNotaAcumulador