diff --git a/src/lib.rs b/src/lib.rs
index 8fd0021..fa34c5a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -37,7 +37,7 @@ impl Chunk {
     }
 }
 
-pub fn fix(mut bytes: Vec<u8>) -> Vec<u8> {
+pub fn fix(bytes: Vec<u8>) -> Vec<u8> {
     let mut bufread = Cursor::new(bytes);
 
     // read the png header
@@ -47,7 +47,7 @@ pub fn fix(mut bytes: Vec<u8>) -> Vec<u8> {
     let mut chunks = Vec::new();
 
     let mut lenbuf = [0; 4];
-    while let Ok(_) = bufread.read_exact(&mut lenbuf) {
+    while bufread.read_exact(&mut lenbuf).is_ok() {
         let len = u32::from_be_bytes(lenbuf);
 
         let mut kind = [0; 4];
diff --git a/src/main.rs b/src/main.rs
index eebecbe..0f492f2 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -75,8 +75,8 @@ fn main() {
 
     for thatpath in filelist {
         println!("Filename: {:?}", thatpath);
-        let frfr = read(thatpath.to_owned()).expect("wtf the path doesnt exist");
-        let mut fr = lib::fix(frfr);
+        let frfr = read(&thatpath).expect("wtf the path doesnt exist");
+        let fr = lib::fix(frfr);
         write(thatpath, fr).expect("file could not write btw");
     }
 }