diff --git a/string_slicing/src/main.rs b/string_slicing/src/main.rs
index 566db74..f7bcad9 100644
--- a/string_slicing/src/main.rs
+++ b/string_slicing/src/main.rs
@@ -1,4 +1,4 @@
-fn first_word(s: &String) -> &str {
+fn first_word(s: &str) -> &str {
     let bytes = s.as_bytes();
 
     for (i, &item) in bytes.iter().enumerate() {