1 files changed, 1 insertions, 1 deletions
diff --git a/src/parser.rs b/src/parser.rs
index f5eaf96..8b0dc05 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -176,7 +176,7 @@ second:
         )
         .unwrap();
 
-        let names = roadmap.step_names();
+        let names: Vec<&str> = roadmap.step_names().collect();
         assert_eq!(names.len(), 2);
         assert!(names.contains(&"first"));
         assert!(names.contains(&"second"));