diff --git a/src/main.rs b/src/main.rs
index c217a7d..5818f1b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -25,12 +25,10 @@ async fn main() -> std::io::Result<()> {
         panic!("Not enough arguments");
     }
     let filename: String = argv.nth(1).unwrap();
-    let buf = File::open(&filename)
-        .await
-        .expect("Failed to open input file.");
+    let buf = File::open(&filename);
     magick_rust::magick_wand_genesis();
 
-    let buf = BufReader::new(buf).compat();
+    let buf = BufReader::new(buf.await.expect("Failed to open input file")).compat();
     let mut zip = ZipFileReader::new(buf)
         .await
         .expect("Failed to decompress input file.");
@@ -42,13 +40,12 @@ async fn main() -> std::io::Result<()> {
     for i in 0..zip.file().entries().len() {
         let file = zip.file().entries().get(i).unwrap().clone();
         let filename = file.filename();
-        let mut entry = zip
-            .reader_with_entry(i)
-            .await
-            .expect("Failed to get zip individual file.");
+        let entry = zip.reader_with_entry(i);
         let mut buf = vec![];
 
         let n = entry
+            .await
+            .expect("Failed to get zip individual file.")
             .read_to_end_checked(&mut buf)
             .await
             .expect("Failed to read the zip individual file.");