diff --git a/app/CustomFuncPao.php b/app/CustomFuncPao.php
index be1a2885..1782d809 100644
--- a/app/CustomFuncPao.php
+++ b/app/CustomFuncPao.php
@@ -356,7 +356,7 @@ function libriInPrevendita()
                 '[Qta = <span style="">' . $article->QtaDisponibile . '</span>]' . $sep .
                 '[In Stock = <span style="color:' . $colore . '; font-weight: bold;">' . $qtyinstock . '</span>]' . $sep;
 
-            if ($qtyinstock > 0) {
+            if ($qtyinstock < 0) {
                 $myview .= '<a href="' . $article->permalink . '/apimacro/public/aggiornapreorder/' . $article->IdArticolo . '/1" target="_blank">Imposta in PRE-ORDINE!</a>' . $sep;
             }