diff --git a/actions.php b/actions.php
index 468dac157..7ec7067f8 100755
--- a/actions.php
+++ b/actions.php
@@ -197,10 +197,10 @@ elseif (filter('op') == 'download-zip-allegati') {
         $src = basename($allegato->filepath);
         $dst = basename($allegato->original_name);
 
-        $file = slashes($module->upload_directory.'/'.$src);
-        $dest = slashes($dir.'tmp/'.$dst);
+        $file_content = $allegato->get_contents();
 
-        $result = copy($file, $dest);
+        $dest = slashes($dir.'tmp/'.$dst);
+        file_put_contents($dest, $file_content);
     }
 
     // Creazione zip
diff --git a/modules/ddt/modutil.php b/modules/ddt/modutil.php
index 692244913..67693a95c 100644
--- a/modules/ddt/modutil.php
+++ b/modules/ddt/modutil.php
@@ -165,10 +165,7 @@ if (!function_exists('ricalcola_costiagg_ddt')) {
 
             // Leggo l'iva predefinita per calcolare l'iva aggiuntiva sulla rivalsa inps
             $qi = Aliquota::find(setting('Iva predefinita'))->percentuale;
-            if ($qi) {
-                $rsi = $dbo->fetchArray($qi);
-            }
-            $iva_rivalsainps = $rivalsainps / 100 * $rsi[0]['percentuale'];
+            $iva_rivalsainps = $rivalsainps / 100 * $qi;
 
             // Aggiorno la rivalsa inps
             $dbo->query("UPDATE dt_ddt SET rivalsainps='$rivalsainps', iva_rivalsainps='$iva_rivalsainps' WHERE id='$idddt'");