diff --git a/src/tp/tp0900.cpp b/src/tp/tp0900.cpp
index 8570d741a..a92995af5 100755
--- a/src/tp/tp0900.cpp
+++ b/src/tp/tp0900.cpp
@@ -277,7 +277,7 @@ void TDichiarazione_CONAI::scrivi_csv_doc_speciale(const TDocumento& doc, TDichi
     //riempie i campi del record del csv
     //codnum-anno-ndoc-datadoc-codcli-cofi-nriga-codagg1-sottocat-prezzo-um-conai(AB)-conai(B)-conai(A)
     //parte chiave della riga
-    csv.set(0, TVariant(rdoc.get(RDOC_CODNUM)));
+    csv.set(0, rdoc.get(RDOC_CODNUM));
     csv.set(1, TVariant(rdoc.get(RDOC_ANNO)));
     csv.set(2, TVariant(rdoc.get(RDOC_NDOC)));
     csv.set(3, TVariant(datadoc));