diff --git a/test/sequential/test-debug-prompt.js b/test/sequential/test-debug-prompt.js
index 902bce34fc46f4..e32f4646900536 100644
--- a/test/sequential/test-debug-prompt.js
+++ b/test/sequential/test-debug-prompt.js
@@ -7,9 +7,12 @@ const spawn = require('child_process').spawn;
 const proc = spawn(process.execPath, ['inspect', 'foo']);
 proc.stdout.setEncoding('utf8');
 
+let needToSendExit = true;
 let output = '';
 proc.stdout.on('data', (data) => {
   output += data;
-  if (output.includes('debug> '))
+  if (output.includes('debug> ') && needToSendExit) {
     proc.stdin.write('.exit\n');
+    needToSendExit = false;
+  }
 });