diff --git a/node_modules/include-all/lib/help-include-all-sync.js b/node_modules/include-all/lib/help-include-all-sync.js
index b6d0f8b..c9505f7 100644
--- a/node_modules/include-all/lib/help-include-all-sync.js
+++ b/node_modules/include-all/lib/help-include-all-sync.js
@@ -290,7 +290,9 @@ module.exports = function includeAll(options) {
 
           // Require the module.
           try {
-            _modules[keyName] = require(filepath);
+            if(filepath.endsWith("js")){
+              _modules[keyName] = require(filepath);
+            }
           } catch (e) {
             // Skip this module silently if `ignoreRequireFailures` is enabled.
             if (options.ignoreRequireFailures) { return; }