diff --git a/src/digest_engine/program.rs b/src/digest_engine/program.rs
index 462daf6..6342c90 100644
--- a/src/digest_engine/program.rs
+++ b/src/digest_engine/program.rs
@@ -10,7 +10,7 @@ use std::process::{Command, Stdio};
 
 use crate::digest_engine::DigestEngine;
 
-#[derive(Debug)]
+#[derive(Clone)]
 pub struct DigestEngineProgram {
     pub program: String,
     pub args: Vec<String>,