diff --git a/web/app/assets/javascripts/clientUpdate.js b/web/app/assets/javascripts/clientUpdate.js
index 544ec4598..8b4ea6f52 100644
--- a/web/app/assets/javascripts/clientUpdate.js
+++ b/web/app/assets/javascripts/clientUpdate.js
@@ -256,7 +256,7 @@
     // check if updated is needed
     async function check() {
 
-      var os = await context.JK.getDetailedOS();
+      var os = await context.jamClient.GetDetailedOS();
       //os = 'Win32'
 
       // check kill switch before all other logic