diff --git a/Compras/Proveedores.aspx b/Compras/Proveedores.aspx
index a5675bbfe..dad72b1e8 100644
--- a/Compras/Proveedores.aspx
+++ b/Compras/Proveedores.aspx
@@ -264,7 +264,7 @@
                                                     <td>
                                                         <div class="form-group form-md-line-input" style="width: 200px">
                                                             <asp:TextBox ID="TxtRFC" CssClass="form-control input-sm" runat="server" MaxLength="13"></asp:TextBox><label></label>
-                                                            <asp:RegularExpressionValidator ID="REVRFC" runat="server" Display="Dynamic" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''RFC''</b> es incorrecto, por favor ingréselo." ValidationGroup="GrpGuardar" ControlToValidate="TxtRFC" ValidationExpression="^[a-zA-Z.)(/\\&-]{3,4}(\d{6})((\D|\d){2})((\D|\d){1})$"></asp:RegularExpressionValidator>
+                                                            <asp:RegularExpressionValidator ID="REVRFC" runat="server" Display="Dynamic" ErrorMessage="<b><span style='text-decoration: underline'>ERROR:</span></b><br />El campo <b>''RFC''</b> es incorrecto, por favor ingréselo." ValidationGroup="GrpGuardar" ControlToValidate="TxtRFC" ValidationExpression="^[a-zñA-ZÑ.)(/\\&-]{3,4}(\d{6})((\D|\d){2})((\D|\d){1})$"></asp:RegularExpressionValidator>
                                                             <ajax:ValidatorCalloutExtender ID="VCEREVRFC" runat="server" HighlightCssClass="vco" TargetControlID="REVRFC" Width="300px" BehaviorID="_content_VCEREVRFC"></ajax:ValidatorCalloutExtender>
                                                             <asp:RequiredFieldValidator ID="RFVRFC" runat="server" ControlToValidate="TxtRFC" Display="None" 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>
                                                             <ajax:ValidatorCalloutExtender ID="VCERFC" runat="server" HighlightCssClass="vco" TargetControlID="RFVRFC" Width="300px" BehaviorID="_content_VCERFC"></ajax:ValidatorCalloutExtender>