diff --git a/test/test-thead.js b/test/test-thead.js
index ca3de7ae..772a7781 100644
--- a/test/test-thead.js
+++ b/test/test-thead.js
@@ -1,6 +1,7 @@
 
 var tf = new TableFilter('demo', {
-    base_path: '../dist/tablefilter/'
+    base_path: '../dist/tablefilter/',
+    sticky_headers: true
 });
 tf.init();
 
@@ -12,6 +13,8 @@ test('thead', function() {
     deepEqual(tf.getRowsNb(), 7, 'nb working rows');
     deepEqual(tf.getRowsNb(true), 9, 'nb working rows with headers');
     notEqual(tf.getFilterElement(0), null, 'Filter element for column 0');
+    deepEqual(tf.dom().tHead.classList.contains(tf.stickyCssClass), true,
+        'Sticky headers CSS class');
 
     tf.setFilterValue(1, 'Ade');
     tf.filter();