diff --git a/sigla-ejb/src/main/java/it/cnr/contab/doccont00/comp/DistintaCassiereComponent.java b/sigla-ejb/src/main/java/it/cnr/contab/doccont00/comp/DistintaCassiereComponent.java
index be647a1b0c..18b598073b 100644
--- a/sigla-ejb/src/main/java/it/cnr/contab/doccont00/comp/DistintaCassiereComponent.java
+++ b/sigla-ejb/src/main/java/it/cnr/contab/doccont00/comp/DistintaCassiereComponent.java
@@ -3859,7 +3859,7 @@ public it.cnr.contab.doccont00.intcass.xmlbnl.Reversale recuperaDatiReversaleFlu
 					clas.setImporto(doc.getImportoCge().setScale(2, BigDecimal.ROUND_HALF_UP));
 					infover.getClassificazione().add(clas);
 				}
-				if(infover.getCausale()!=null ){
+				if(infover.getCausale()!=null  && doc.getCdCup()!=null){
 					if (!infover.getCausale().contains(doc.getCdCup()))
 						infover.setCausale(infover.getCausale()+"-"+doc.getCdCup());
 				}else