diff --git a/cg/cg0200a.uml b/cg/cg0200a.uml
index 13308f0a3..97b1445f2 100755
--- a/cg/cg0200a.uml
+++ b/cg/cg0200a.uml
@@ -1233,7 +1233,7 @@ BEGIN
   CHECKTYPE NORMAL
 END
 
-NUMBER F_ASSFIS 4
+STRING F_ASSFIS 4
 BEGIN
   PROMPT 2 11 "Codice Assoggettamento fiscale  "
   FIELD LF_CFVEN->ASSFIS