diff --git a/app.js b/app.js
index 2ef2b46..6d227e8 100644
--- a/app.js
+++ b/app.js
@@ -57,7 +57,7 @@ app.post('/api/classify', async (req, res, next) => {
   }
   const classifyParams = {
     imagesFile: imageFile,
-    classifier_ids: ['default']
+    classifierIds: ['default']
   };
   try {
     const response = await client.classify(classifyParams);
@@ -80,4 +80,4 @@ app.post('/api/classify', async (req, res, next) => {
 // error-handler settings for all other routes
 require('./config/error-handler')(app);
 
-module.exports = app;
\ No newline at end of file
+module.exports = app;