diff --git a/README.md b/README.md
index 079d1cd..742b0a9 100644
--- a/README.md
+++ b/README.md
@@ -210,7 +210,7 @@ Creates new data from the existing one. Mostly applicable to strings, objects, o
 
 ```js
 function composePageUrl(pageName, pageId) {
-  return `${pageName.toLowerCase()}-${pageId}`
+  return (pageName.toLowerCase() + '-' + pageId)
 }
 ```