diff --git a/snippets/useInterval.md b/snippets/useInterval.md
index cfb463588..f58e75b07 100644
--- a/snippets/useInterval.md
+++ b/snippets/useInterval.md
@@ -21,7 +21,7 @@ const useInterval = (callback, delay) => {
   }, [callback]);
 
   React.useEffect(() => {
-    function tick() {
+    const tick = () => {
       savedCallback.current();
     }
     if (delay !== null) {
diff --git a/snippets/useTimeout.md b/snippets/useTimeout.md
index 99ea6b3ae..f2e5e1203 100644
--- a/snippets/useTimeout.md
+++ b/snippets/useTimeout.md
@@ -21,7 +21,7 @@ const useTimeout = (callback, delay) => {
   }, [callback]);
 
   React.useEffect(() => {
-    function tick() {
+    const tick = () => {
       savedCallback.current();
     }
     if (delay !== null) {