diff --git a/lib/loader.js b/lib/loader.js
index eed650f..8620326 100644
--- a/lib/loader.js
+++ b/lib/loader.js
@@ -5,7 +5,7 @@ const path = require('path');
 const methods = ['get', 'post', 'put', 'delete', 'patch', 'options', 'head'];
 
 const load = configDir => {
-  const rawConfigs = requireDir(module, path.resolve(configDir));
+  const rawConfigs = requireDir(module, path.resolve(configDir), { extensions: ['js', 'ts'] });
   return _.flattenDeep(findRecursive(rawConfigs));
 };