diff --git a/Ashx/SIGWeb.ashx b/Ashx/SIGWeb.ashx
index eedb48556..47b1d2821 100644
--- a/Ashx/SIGWeb.ashx
+++ b/Ashx/SIGWeb.ashx
@@ -759,9 +759,7 @@ Public Class SIGWeb : Implements IHttpHandler, IRequiresSessionState
         End If
 
         Dim EsDistribuidor As Integer = IfNull(context.Request("esdistribuidor"), "-1").ToString.ToEntero
-
         Dim cveclienteclasificacion = IfNull(context.Request("cveclienteclasificacion"), "-1").ToString.ToEntero
-
         Dim usuario As Usuario = UsuarioActual(context)
         Dim CveEmpresa As Integer
         If IsNothing(usuario) Then
@@ -799,7 +797,7 @@ Public Class SIGWeb : Implements IHttpHandler, IRequiresSessionState
         Else
             context.Response.Write("[]")
         End If
-        DtRetorno.Dispose()
+        If DtRetorno IsNot Nothing Then DtRetorno.Dispose()
         DtRetorno = Nothing
 
         Return retorno