diff --git a/packages/guidelines.md b/packages/guidelines.md
index f50089f873b..83f62302215 100644
--- a/packages/guidelines.md
+++ b/packages/guidelines.md
@@ -17,7 +17,7 @@ You can also find some reasons for those design decisions and also some tips for
 - Use `configurableWindow` (etc.) when using global variables like `window` to be flexible when working with multi-windows, testing mocks, and SSR.
 - When involved with Web APIs that are not yet implemented by the browser widely, also outputs `isSupported` flag
 - When using `watch` or `watchEffect` internally, also make the `immediate` and `flush` options configurable whenever possible
-- Use `tryOnUnmounted` to clear the side-effects gracefully
+- Use `tryOnScopeDispose` to clear the side-effects gracefully
 - Avoid using console logs
 - When the function is asynchronous, return a PromiseLike