diff --git a/sc/sc0300.cpp b/sc/sc0300.cpp
index 2969d5acc..c3c27c109 100644
--- a/sc/sc0300.cpp
+++ b/sc/sc0300.cpp
@@ -400,6 +400,7 @@ bool TPareggio_mask::abbuona_rata(const real& imp, const TRectype& nota, TRiga_s
   new_nc.put(PART_SEZ,     scad.riga().get_char(PART_SEZ) == 'D' ? 'A' : 'D');
   new_nc.put(PART_TIPOMOV, tm_nota_credito);
   new_nc.put(PART_NREG,    nota.get(PART_NREG));
+  new_nc.put(PART_NUMRIG,  1);   // 24-09-2012 !
   new_nc.put(PART_CODCAUS, nota.get(PART_CODCAUS));
   new_nc.put(PART_REG,     nota.get(PART_REG));
   new_nc.put(PART_NUMDOC,  nota.get(PART_NUMDOC));