diff --git a/src/command.rs b/src/command.rs
index 8d2db2f..128556b 100644
--- a/src/command.rs
+++ b/src/command.rs
@@ -4,10 +4,6 @@ pub struct ExitCode {
     exit_code: u8,
 }
 
-pub trait Command {
-    fn spawn(&self) -> ExitCode;
-}
-
 impl ExitCode {
     pub fn new(exit_code: u8) -> Self {
         Self { exit_code }
@@ -18,6 +14,10 @@ impl ExitCode {
     }
 }
 
+pub trait Command {
+    fn spawn(&self) -> ExitCode;
+}
+
 pub struct UnixProgram {
     argv: Vec<String>,
 }