diff --git a/codex-rs/core/tests/suite/shell_command.rs b/codex-rs/core/tests/suite/shell_command.rs
index ad02a645e..ce0f47698 100644
--- a/codex-rs/core/tests/suite/shell_command.rs
+++ b/codex-rs/core/tests/suite/shell_command.rs
@@ -268,7 +268,7 @@ async fn unicode_output(login: bool) -> anyhow::Result<()> {
     // config is actually being set correctly.
     let call_id = "unicode_output";
     let command = if cfg!(windows) {
-        "cmd /c echo naïve_café"
+        "& $env:COMSPEC /c echo naïve_café"
     } else {
         "echo \"naïve_café\""
     };