diff --git a/js/components/collapsible-section.js b/js/components/collapsible-section.js
index 55aa6d905..f1b23ef82 100644
--- a/js/components/collapsible-section.js
+++ b/js/components/collapsible-section.js
@@ -20,7 +20,7 @@
 $(function () {
 	// the widget definition, where 'itop' is the namespace,
 	// 'breadcrumbs' the widget name
-	$.widget('itop.collapsibleSection',
+	$.widget('itop.collapsible_section',
 		{
 			// default options
 			options:
diff --git a/templates/base/components/collapsible-section/layout.js.twig b/templates/base/components/collapsible-section/layout.js.twig
index ee297e0db..306b3975e 100644
--- a/templates/base/components/collapsible-section/layout.js.twig
+++ b/templates/base/components/collapsible-section/layout.js.twig
@@ -1,4 +1,4 @@
-$('#{{ oUIBlock.GetId() }}').collapsibleSection({
-	bOpenedByDefault: {{ oUIBlock.IsOpenedByDefault()|var_export }}
-	{% if oUIBlock.IsSaveCollapsibleStateEnabled() %}, collapsibleStateStorageKey: '{{ oUIBlock.GetSessionCollapsibleStateStorageKey() }}'{% endif %}
+$('#{{ oUIBlock.GetId() }}').collapsible_section({
+    bOpenedByDefault: {{ oUIBlock.IsOpenedByDefault()|var_export }}
+    {% if oUIBlock.IsSaveCollapsibleStateEnabled() %}, collapsibleStateStorageKey: '{{ oUIBlock.GetSessionCollapsibleStateStorageKey() }}'{% endif %}
 });
\ No newline at end of file