1 files changed, 1 insertions, 1 deletions
diff --git a/src/libcoretest/str.rs b/src/libcoretest/str.rs
index a89d3380707..cac78363dd5 100644
--- a/src/libcoretest/str.rs
+++ b/src/libcoretest/str.rs
@@ -35,7 +35,7 @@ fn test_bool_from_str() {
 fn check_contains_all_substrings(s: &str) {
     assert!(s.contains(""));
     for i in 0..s.len() {
-        for j in range(i+1, s.len() + 1) {
+        for j in i+1..s.len() + 1 {
             assert!(s.contains(&s[i..j]));
         }
     }