1 files changed, 5 insertions, 4 deletions
diff --git a/src/data.rs b/src/data.rs
index 6976352..0db499c 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -15,13 +15,14 @@ pub fn get_data1() -> SimpleFsData {
                  SimpleFsData::File(2, "Hello, World!".to_string()))))
 }
 
-pub fn traverse_fs<F>(file: SimpleFsData, f: &mut F)
+pub fn traverse_fs<F>(file: &SimpleFsData, f: &mut F)
     where F: FnMut(& SimpleFsData) {
     f(&file);
     match file {
-        SimpleFsData::Directory(_, children) => for (_, file) in children {
-           traverse_fs(file, f);
-        },
+        &SimpleFsData::Directory(_, ref children) =>
+            for &(_, ref file) in children {
+                traverse_fs(&file, f);
+            },
         _ => (),
     }
 }