diff --git a/plugins/dichiarazioni_intento/edit.php b/plugins/dichiarazioni_intento/edit.php
index 53e16da17..391dc69a6 100755
--- a/plugins/dichiarazioni_intento/edit.php
+++ b/plugins/dichiarazioni_intento/edit.php
@@ -99,10 +99,10 @@ if (!empty($elementi)) {
 	<div class="card card-warning collapsable collapsed-card">
 		<div class="card-header with-border">
 			<h3 class="card-title"><i class="fa fa-warning"></i> '.tr('Documenti collegati: _NUM_', [
-        '_NUM_' => count($elementi),
-    ]).'</h3>
+			'_NUM_' => count($elementi),
+		]).'</h3>
 			<div class="card-tools pull-right">
-				<button type="button" class="btn btn-tool" data-widget="collapse"><i class="fa fa-plus"></i></button>
+				<button type="button" class="btn btn-tool" data-card-widget="collapse"><i class="fa fa-plus"></i></button>
 			</div>
 		</div>
 		<div class="card-body">