diff --git a/ve/velib06.cpp b/ve/velib06.cpp
index 69e22eca5..35f8fa221 100755
--- a/ve/velib06.cpp
+++ b/ve/velib06.cpp
@@ -2216,7 +2216,7 @@ bool TDocumento_mask::num_handler( TMask_field& f, KEY key )
   if (key == K_TAB && f.to_check(key, TRUE))
   {
     // Ottengo la maschera
-    TDocumento_mask& m = (TDocumento_mask&)f.mask( );
+    TMask& m = f.mask( );
     
     TTable & tabnum  = ((TTable &) ((TEdit_field &)f).browse()->cursor()->file());
     if ( tabnum.good())