diff --git a/at/at4600.cpp b/at/at4600.cpp
index 2dd4aadb6..9d752c183 100755
--- a/at/at4600.cpp
+++ b/at/at4600.cpp
@@ -84,6 +84,8 @@ void TStampaTessereS::add_rows_soggetti(TSheet_field& s, int count, int start)
 
 void TStampaTessereS::filtra_codici()
 {
+	for (_sogtmp->first(); !_sogtmp->eof(); _sogtmp->next())
+		_sogtmp->remove();
 	TSheet_field& s = (TSheet_field&)_msk->field(F_SOGGETTI);
 	for (int r=0; r < s.items(); r++)
  	{