diff --git a/src/cmd.rs b/src/cmd.rs
index 2330c91..5943480 100644
--- a/src/cmd.rs
+++ b/src/cmd.rs
@@ -10,15 +10,15 @@ airport-paths -h
     );
 }
 
-pub fn handle_args(args: Vec<String>, _code_to_id: HashMap<String, usize>) -> (usize, usize) {
+pub fn handle_args(args: Vec<String>, code_to_id: HashMap<String, usize>) -> (usize, usize) {
     let (origin, destination) = match args.len() {
         3 => {
             let exit_handler = || {
                 println!("unable to find airport");
                 exit(2);
             };
-            let origin = _code_to_id.get(&args[1]).unwrap_or_else(exit_handler);
-            let destination = _code_to_id.get(&args[2]).unwrap_or_else(exit_handler);
+            let origin = code_to_id.get(&args[1]).unwrap_or_else(exit_handler);
+            let destination = code_to_id.get(&args[2]).unwrap_or_else(exit_handler);
 
             (origin, destination)
         }