diff --git a/src/command.rs b/src/command.rs
index 0ccccf5..bced27d 100644
--- a/src/command.rs
+++ b/src/command.rs
@@ -49,20 +49,12 @@ impl Command for CommandSequence {
 }
 
 pub struct UnixProgram {
-    argv: Vec<String>,
+    command: std::process::Command,
 }
 
 impl UnixProgram {
-    pub fn new(argv: Vec<String>) -> Self {
-        Self { argv }
-    }
-}
-
-impl Command for UnixProgram {
-    fn spawn(&self) -> ExitCode {
-        let mut argv = self.argv.clone();
+    pub fn new(mut argv: Vec<String>) -> Self {
         let program = argv.remove(0);
-
         let mut command = std::process::Command::new(&program);
         command.args(argv);
 
@@ -89,7 +81,10 @@ impl Command for UnixProgram {
 
             exit_code
         } else {
-            let message = format!("{}: command not found", &program);
+            let message = format!(
+                "{}: command not found",
+                self.command.get_program().to_str().unwrap()
+            );
             error::print_error(message);
             ExitCode::not_found()
         }