diff --git a/demo/2-declaritive-styles.ts b/demo/2-declaritive-styles.ts
index 11e306b07e..88596bf1a3 100644
--- a/demo/2-declaritive-styles.ts
+++ b/demo/2-declaritive-styles.ts
@@ -182,6 +182,17 @@ const doc = new Document({
                         }),
                     ],
                 }),
+                new Paragraph({
+                    children: [
+                        new TextRun({
+                            strike: true,
+                            underline: {
+                                type: UnderlineType.SINGLE,
+                            },
+                            text: "Underline and Strike",
+                        }),
+                    ],
+                }),
             ],
         },
     ],