diff --git a/demo/web1.html b/demo/web1.html
index ebe51a185..58bcef716 100644
--- a/demo/web1.html
+++ b/demo/web1.html
@@ -25,6 +25,7 @@ <h1>Web demo 1</h1>
   <script type="text/javascript">
     let grid = GridStack.init({
       cellHeight: 70,
+      disableOneColumnMode: true,
     });
 
     let items = [
diff --git a/demo/web2.html b/demo/web2.html
index 96ef403d5..db0a4b2d3 100644
--- a/demo/web2.html
+++ b/demo/web2.html
@@ -62,6 +62,7 @@ <h1>Advanced Demo</h1>
       cellHeight: 70,
       acceptWidgets: true,
       removable: '#trash', // drag-out delete class
+      disableOneColumnMode: true,
     });
     GridStack.setupDragIn('.newWidget', { appendTo: 'body', helper: 'clone' });