diff --git a/m770/77base1.frm b/m770/77base1.frm
index 035a3f1a9..77b1bad89 100755
--- a/m770/77base1.frm
+++ b/m770/77base1.frm
@@ -1,3 +1,7 @@
+// Nota:
+// Gli alias 213, 613, 813 sono separati per ovvii motivi di stampa
+// di valori diversi
+
 USE 36
 JOIN 37 TO 36 INTO TIPOQUA=TIPOQUA CODDITTA=CODDITTA
 JOIN  9 TO 36 INTO CODDITTA=CODDITTA
@@ -7,6 +11,7 @@ JOIN  8 TO  6 ALIAS 118 INTO CODANAGR=CODANAGR
 JOIN 13 TO  8 ALIAS 113 INTO COM==COMNASC
 JOIN 13 TO  6 ALIAS 213 INTO COM==COMRF(COMRES)
 JOIN 13 TO  6 ALIAS 613 INTO COM==COMRES
+JOIN 13 TO  6 ALIAS 813 INTO COM==COMRF
 JOIN  6 TO  36  ALIAS 216 INTO TIPOA=="F" CODANAGR==RAPPR   
 JOIN  8 TO 216@ ALIAS 218 INTO CODANAGR==CODANAGR 
 JOIN 13 TO 218@ ALIAS 313 INTO COM==COMNASC
@@ -371,7 +376,7 @@ STRING 36
 BEGIN
   KEY "COMUNE DI RESIDENZA FISCALE"
   PROMPT 41 19 ""
-  FIELD 213@->DENCOM
+  FIELD 813@->DENCOM
   GROUP 2
 END
 
@@ -379,7 +384,7 @@ STRING 37
 BEGIN
   KEY "PROV. RESIDENZA FISCALE"
   PROMPT 122 19 ""
-  FIELD 213@->PROVCOM
+  FIELD 813@->PROVCOM
   GROUP 2
 END