diff --git a/lib/WsPlatform.js b/lib/WsPlatform.js
index 4fd321d..3c6ac87 100644
--- a/lib/WsPlatform.js
+++ b/lib/WsPlatform.js
@@ -29,7 +29,7 @@ class WsPlatform extends homebridgeLib.Platform {
     optionParser.listKey('locations')
     optionParser.boolKey('noPressure')
     optionParser.boolKey('noHumidity')
-    optionParser.on('usageError', (message) => {
+    optionParser.on('userInputError', (message) => {
       this.warn('config.json: %s', message)
     })
     try {