diff --git a/htdocs/core/class/html.formother.class.php b/htdocs/core/class/html.formother.class.php
index 46858191c7b..d352b996ef2 100644
--- a/htdocs/core/class/html.formother.class.php
+++ b/htdocs/core/class/html.formother.class.php
@@ -1177,7 +1177,7 @@ class FormOther
 			$selectboxlist .= '<input type="hidden" name="userid" value="'.$user->id.'">';
 			$selectboxlist .= '<input type="hidden" name="areacode" value="'.$areacode.'">';
 			$selectboxlist .= '<input type="hidden" name="boxorder" value="'.$boxorder.'">';
-			$selectboxlist .= Form::selectarray('boxcombo', $arrayboxtoactivatelabel, -1, $langs->trans("ChooseBoxToAdd").'...', 0, 0, '', 0, 0, 0, 'ASC', 'maxwidth150onsmartphone', 0, 'hidden selected', 0, 1);
+			$selectboxlist .= Form::selectarray('boxcombo', $arrayboxtoactivatelabel, -1, $langs->trans("ChooseBoxToAdd").'...', 0, 0, '', 0, 0, 0, 'ASC', 'maxwidth150onsmartphone hideonprint', 0, 'hidden selected', 0, 1);
 			if (empty($conf->use_javascript_ajax)) {
 				$selectboxlist .= ' <input type="submit" class="button" value="'.$langs->trans("AddBox").'">';
 			}
diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index e039779c96d..d223a70fbc9 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -1652,7 +1652,7 @@ table.tableforfield tr>td:first-of-type, tr.trforfield>td:first-of-type, div.tab
 }
 
 <?php if (GETPOST('optioncss', 'aZ09') == 'print') { ?>
-.hideonprint { display: none; }
+.hideonprint { display: none !important; }
 <?php } ?>
 
 
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index 2c91aa0299b..5027c1501e9 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -1668,7 +1668,7 @@ table.tableforfield tr>td:first-of-type, tr.trforfield>td:first-of-type, div.tab
 }
 
 <?php if (GETPOST('optioncss', 'aZ09') == 'print') { ?>
-.hideonprint { display: none; }
+.hideonprint { display: none !important; }
 <?php } ?>