diff --git a/lv/lv0400.cpp b/lv/lv0400.cpp
index c30bc05c7..9ffdc2b5b 100755
--- a/lv/lv0400.cpp
+++ b/lv/lv0400.cpp
@@ -697,7 +697,7 @@ bool TContratti_msk::on_field_event(TOperable_field& o,TField_event e,long jolly
       }  
     }
     break;
-  case DLG_PACKTCLI:
+  case DLG_RESET:
     if (e == fe_button && yesno_box(TR("Si è sicuri di voler azzerare i conguagli di questo contratto?")))
       azzera_conguaglio();
  default:
diff --git a/lv/lv0400.h b/lv/lv0400.h
index 0a2cc5ef8..a72cb841f 100755
--- a/lv/lv0400.h
+++ b/lv/lv0400.h
@@ -48,6 +48,7 @@
 #define F_TPDOC           248
 #define F_DESCR           249
 #define F_REDDI           250
+#define DLG_RESET         251
 
 // Campi del dettalio sotto lo spreadsheet 
 
diff --git a/lv/lv0400a.uml b/lv/lv0400a.uml
index 03ccc99ef..a5e7f2bb0 100755
--- a/lv/lv0400a.uml
+++ b/lv/lv0400a.uml
@@ -15,6 +15,18 @@ BEGIN
   PICTURE 156
 END
 
+BUTTON DLG_NULL 2 2
+BEGIN
+  PROMPT -1 1 ""
+  PICTURE 0
+END
+
+BUTTON DLG_RESET 2 2
+BEGIN
+  PROMPT 1 1 "Conguaglio"
+  PICTURE TOOL_RESET
+END
+
 #include <cancelbar.h>
 
 ENDPAGE