diff --git a/docs/walkthroughs/01-installing-slate.md b/docs/walkthroughs/01-installing-slate.md
index 02624d665..461d97b4a 100644
--- a/docs/walkthroughs/01-installing-slate.md
+++ b/docs/walkthroughs/01-installing-slate.md
@@ -66,7 +66,7 @@ declare module 'slate' {
 }
 ```
 
-```typescript jsx
+```typescript
 // Also you must annotate `useState<Descendant[]>` and the editor's initial value.
 const App = () => {
   const initialValue: CustomElement = []