diff --git a/codex-rs/exec-server/src/posix.rs b/codex-rs/exec-server/src/posix.rs
index b4dd0fbf40..3a4a4b9525 100644
--- a/codex-rs/exec-server/src/posix.rs
+++ b/codex-rs/exec-server/src/posix.rs
@@ -78,6 +78,7 @@ mod stopwatch;
 const CODEX_EXECVE_WRAPPER_EXE_NAME: &str = "codex-execve-wrapper";
 
 #[derive(Parser)]
+#[clap(version)]
 struct McpServerCli {
     /// Executable to delegate execve(2) calls to in Bash.
     #[arg(long = "execve")]