diff --git a/packages/preact/constants.ts b/packages/preact/constants.ts
index c96a6c0659..11402078b9 100644
--- a/packages/preact/constants.ts
+++ b/packages/preact/constants.ts
@@ -1,3 +1,10 @@
+import { useEffect } from 'preact/hooks';
+
 export const RENDER_SCOPE = 'slot';
 export const SVG_RENDER_SCOPE = 'g';
 export const REACT_ROOT = '__react_root';
+
+export const Effect = ({ effect }: { effect: () => void }): null => {
+  useEffect(effect, []);
+  return null;
+};