diff --git a/tests/path/arg.rs b/tests/path/arg.rs
index 66f0bfd23..fc6149bd4 100644
--- a/tests/path/arg.rs
+++ b/tests/path/arg.rs
@@ -13,7 +13,7 @@ fn test_arg() {
     use std::borrow::Borrow;
 
     let t: &str = "hello";
-    assert_eq!("hello", t.as_str().unwrap());
+    assert_eq!("hello", Arg::as_str(&t).unwrap());
     assert_eq!("hello".to_owned(), Arg::to_string_lossy(&t));
     assert_eq!(cstr!("hello"), Borrow::borrow(&t.as_cow_c_str().unwrap()));
     assert_eq!(cstr!("hello"), Borrow::borrow(&t.into_c_str().unwrap()));