diff --git a/src/java/com/rjconsultores/ventaboletos/web/gui/controladores/tarifas/EditarTarifaKmController.java b/src/java/com/rjconsultores/ventaboletos/web/gui/controladores/tarifas/EditarTarifaKmController.java
index c930f5e76..8511f4ce2 100644
--- a/src/java/com/rjconsultores/ventaboletos/web/gui/controladores/tarifas/EditarTarifaKmController.java
+++ b/src/java/com/rjconsultores/ventaboletos/web/gui/controladores/tarifas/EditarTarifaKmController.java
@@ -352,6 +352,8 @@ public class EditarTarifaKmController extends MyGenericForwardComposer {
 			System.out.println();
             lsTarifaKm = new TreeSet(ar);
             tarifaKmMyListBox.setData(new ArrayList( lsTarifaKm));
+            if(c.getClaseservicioId() == -1){btnAdicionarTarifaKm.setDisabled(Boolean.TRUE);}
+            else{btnAdicionarTarifaKm.setDisabled(Boolean.FALSE);}
 //            cmbOrgao.setDisabled(Boolean.TRUE);
 //            cmbOrgao.setValue(orgao.getDescOrgao());
         }