diff --git a/Ventas/Clientes.aspx b/Ventas/Clientes.aspx
index db1a5ffda..71d0fff76 100644
--- a/Ventas/Clientes.aspx
+++ b/Ventas/Clientes.aspx
@@ -425,7 +425,7 @@
                                         <div class="form-group form-md-line-input input-iconright">
                                             <asp:TextBox ID="TxtRFC" Style="text-transform: uppercase;" runat="server" CssClass="form-control" MaxLength="13"></asp:TextBox>
                                             <asp:RegularExpressionValidator ID="REVRFC" runat="server" ControlToValidate="TxtRFC" CssClass="help-block errorimput" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''RFC''</b> es incorrecto, por favor ingréselo correctamente." ValidationGroup="GrpGuardar" ValidationExpression="^[a-zA-Z.)(/\\&-]{3,4}(\d{6})((\D|\d){2})((\D|\d){1})$"></asp:RegularExpressionValidator>
-                                            <ajax:FilteredTextBoxExtender ID="FilteredTextBoxExtender1" TargetControlID="TxtRFC" FilterType="UppercaseLetters, Numbers,LowercaseLetters, Custom" runat="server" ValidChars="&" InvalidChars="-" />
+                                            <ajax:FilteredTextBoxExtender ID="FilteredTextBoxExtender1" TargetControlID="TxtRFC" FilterType="UppercaseLetters, Numbers,LowercaseLetters, Custom" runat="server" ValidChars="&Ñ" InvalidChars="-" />
                                             <asp:RequiredFieldValidator ID="RFVRFC" runat="server" ControlToValidate="TxtRFC" CssClass="help-block errorimput" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''RFC''</b> es necesario, por favor ingréselo." ValidationGroup="GrpGuardar"></asp:RequiredFieldValidator>
                                             <label for="<%= TxtRFC.ClientID.ToString()%>">RFC:</label>
                                             <i></i>