diff --git a/ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-page.component.ts b/ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-page.component.ts
index ed434bc944..0150597b50 100644
--- a/ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-page.component.ts
+++ b/ui-ngx/src/app/modules/home/components/dashboard-page/dashboard-page.component.ts
@@ -492,7 +492,7 @@ export class DashboardPageComponent extends PageComponent implements IDashboardC
       const cssParser = new cssjs();
       cssParser.testMode = false;
       this.dashboardPageClass  = 'tb-dashboard-page-css-' + guid();
-      cssParser.cssPreviewNamespace = this.dashboardPageClass;
+      cssParser.cssPreviewNamespace = 'tb-default .' + this.dashboardPageClass;
       cssParser.createStyleElement(this.dashboardPageClass, cssString);
     }
   }