diff --git a/public/techdossier_stepsummarynew.php b/public/techdossier_stepsummarynew.php
index 03f0365..358e4fc 100644
--- a/public/techdossier_stepsummarynew.php
+++ b/public/techdossier_stepsummarynew.php
@@ -537,7 +537,7 @@ $archivetrflist->execute(); ?>
                         let params = getParamsFromPage();
                         let previewContainer = document.getElementById('documentPreview');
                         let preloader = document.getElementById('preloader');
-                        let baseURL = 'https:/applicationform.cimac.it/techdossier_stepsummarypreview.php';
+                        let baseURL = 'https:/applicationform.cimac.it/public/techdossier_stepsummarypreview.php';
                         let url = `${baseURL}?idtd=${params.idtd}&idtrftd=${params.idtrftd}`;
 
                         // Mostra il preloader (già presente nell'HTML)