diff --git a/packages/mermaid/src/docs/.vitepress/config.ts b/packages/mermaid/src/docs/.vitepress/config.ts
index da770b71b..baa1f8003 100644
--- a/packages/mermaid/src/docs/.vitepress/config.ts
+++ b/packages/mermaid/src/docs/.vitepress/config.ts
@@ -38,6 +38,7 @@ export default defineConfig({
     ],
   ],
   themeConfig: {
+    logo: '/favicon.svg',
     nav: nav(),
     editLink: {
       pattern: ({ filePath, frontmatter }) => {