diff --git a/README.md b/README.md
index b3d49c5..3ce2ec7 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,8 @@ use rlua_searcher::{AddSearcher, Result};
 use std::collections::HashMap;
 
 fn main() {
-    let lume = read_lume_to_string();
-    let name = "lume".to_string();
+    let lume = Cow::from(read_lume_to_string());
+    let name = Cow::from("lume");
     let mut map = HashMap::new();
     map.insert(name, lume);