diff --git a/ba/ba4400a.uml b/ba/ba4400a.uml
index 935ab491a..3e96a93a0 100755
--- a/ba/ba4400a.uml
+++ b/ba/ba4400a.uml
@@ -142,7 +142,7 @@ BEGIN
   PROMPT 0 6 "CCIAA"
 END
 
-NUMBER FLD_UL1_NUMCCIAA 7
+STRING FLD_UL1_NUMCCIAA 7
 BEGIN
   PROMPT 1 7 "Numero         "
   FIELD LF_UNLOC->NUMCCIAA