diff --git a/lib/config/defaults.js b/lib/config/defaults.js
index 6a225619..e2a448b4 100644
--- a/lib/config/defaults.js
+++ b/lib/config/defaults.js
@@ -7,6 +7,7 @@ module.exports = {
   execMap: {
     py: 'python',
     rb: 'ruby',
+    ts: 'ts-node',
     // more can be added here such as ls: lsc - but please ensure it's cross
     // compatible with linux, mac and windows, or make the default.js
     // dynamically append the `.cmd` for node based utilities