diff --git a/lv/lv3400.cpp b/lv/lv3400.cpp
index 87c1750b3..2d54aed64 100755
--- a/lv/lv3400.cpp
+++ b/lv/lv3400.cpp
@@ -614,7 +614,7 @@ void TEvasione_ter_msk::genera_buono()
       outf << "NoPrintDlg=X" << endl;      // Dont' prompt the user with the print dialog
       outf << endl;
       outf << "[33]" << endl;              // Transaction body
-      outf << "Doc(1)=";
+      outf << "Doc(0)=";
       outf << "D|" << datagen.year() << '|' <<	codnum << '|' << _ndoc << endl;  		
     }