1 files changed, 2 insertions, 2 deletions
diff --git a/src/libnum/complex.rs b/src/libnum/complex.rs
index 9ee80d283cf..f4a3ac97a4e 100644
--- a/src/libnum/complex.rs
+++ b/src/libnum/complex.rs
@@ -347,9 +347,9 @@ mod test {
     }
 
     #[test]
-    fn test_to_str() {
+    fn test_to_string() {
         fn test(c : Complex64, s: String) {
-            assert_eq!(c.to_str(), s);
+            assert_eq!(c.to_string(), s);
         }
         test(_0_0i, "0+0i".to_string());
         test(_1_0i, "1+0i".to_string());