diff --git a/projects/demo/src/app/pages/font/examples/4/index.html b/projects/demo/src/app/pages/font/examples/4/index.html
index 04862e4d3..e0865c948 100644
--- a/projects/demo/src/app/pages/font/examples/4/index.html
+++ b/projects/demo/src/app/pages/font/examples/4/index.html
@@ -1,4 +1,4 @@
 <tui-editor
     [formControl]="control"
     [tools]="builtInTools"
-></tui-editor>
+/>