diff --git a/Compras/Compras.aspx b/Compras/Compras.aspx
index fe9f2113f..5dc6649d0 100644
--- a/Compras/Compras.aspx
+++ b/Compras/Compras.aspx
@@ -3643,7 +3643,7 @@
             <!-- Modal content-->
             <div class="modal-content" style="width: 500px; margin-left: 50px;">
                 <div class="modal-header ">
-                    <button type="button" class="close" data-dismiss="modal">&times;</button>
+                    <%--<button type="button" class="close" data-dismiss="modal">&times;</button>--%>
                     <h4 class="modal-title">Impuestos en la Factura</h4>
                 </div>
 
@@ -3690,7 +3690,7 @@
                     <asp:UpdatePanel runat="server">
                         <ContentTemplate>
                             <asp:Button ID="BtnAgregarIEPS" OnClick="BtnAgregarIEPS_Click" runat="server" ClientIDMode="Static" Text="Agregar" ValidationGroup="GrpAgregar" CssClass="btn btn-primary" />
-                            <button type="button" class="btn btn-danger" data-dismiss="modal">Cancelar</button>
+                            <%--<button type="button" class="btn btn-danger" data-dismiss="modal">Cancelar</button>--%>
                         </ContentTemplate>
                     </asp:UpdatePanel>
                 </div>
diff --git a/Compras/Compras.aspx.vb b/Compras/Compras.aspx.vb
index 58c79ad7a..a95a85aa7 100644
--- a/Compras/Compras.aspx.vb
+++ b/Compras/Compras.aspx.vb
@@ -2359,7 +2359,7 @@ Partial Class Compras_Compras
         End If
 
         If TrasladoIEPS > 0 Or OtrosImpuestos > 0 Then
-            RegistraScript("$('#ModalIEPS').modal('show');")
+            RegistraScript("$('#ModalIEPS').modal({ backdrop: 'static', keyboard: false },'show');")
 
             If TrasladoIEPS > 0 Then
                 ChkIEPS.Visible = True