diff --git a/src/guide/typescript-support.md b/src/guide/typescript-support.md
index 043c948cd7..a571704a98 100644
--- a/src/guide/typescript-support.md
+++ b/src/guide/typescript-support.md
@@ -204,7 +204,7 @@ const Component = defineComponent({
   setup() {
     const year = ref(2020)
 
-    const result = year.value.split('') // => Property 'filter' does not exist on type 'number'
+    const result = year.value.split('') // => Property 'split' does not exist on type 'number'
   }
 })
 ```