diff --git a/codex-rs/rmcp-client/src/stdio_server_launcher.rs b/codex-rs/rmcp-client/src/stdio_server_launcher.rs
index fb3dab525..9928511bb 100644
--- a/codex-rs/rmcp-client/src/stdio_server_launcher.rs
+++ b/codex-rs/rmcp-client/src/stdio_server_launcher.rs
@@ -341,6 +341,9 @@ impl LocalProcessTerminator {
             .arg(self.pid.to_string())
             .arg("/T")
             .arg("/F")
+            .stdin(Stdio::null())
+            .stdout(Stdio::null())
+            .stderr(Stdio::null())
             .status();
     }