diff --git a/with-post-step/main.js b/with-post-step/main.js
index cdef47a..0fa6d9e 100644
--- a/with-post-step/main.js
+++ b/with-post-step/main.js
@@ -24,16 +24,15 @@
  * * https://github.com/docker/login-action/issues/72                                                                 *
  * * https://github.com/actions/runner/issues/1478                                                                    *
  * ================================================================================================================== */
-const { exec } = require("child_process");
+const { spawn } = require("child_process");
 
-function run(cmd) {
-  exec(cmd, (error, stdout, stderr) => {
-    if ( stdout.length !== 0 ) { console.log(`${stdout}`); }
-    if ( stderr.length !== 0 ) { console.error(`${stderr}`); }
-    if (error) {
-      process.exitCode = error.code;
-      console.error(`${error}`);
-    }
+function run(cmdline) {
+  var args = cmdline.split(" ");
+  const cmd = args.shift();
+
+  const subprocess = spawn(cmd, args, { stdio: "inherit" });
+  subprocess.on("exit", (exitCode) => {
+    process.exitCode = exitCode;
   });
 }