diff --git a/client/html/index.html b/client/html/index.html
index e116555d8..0cfbbba3e 100644
--- a/client/html/index.html
+++ b/client/html/index.html
@@ -25,7 +25,7 @@
             executingAt: 'Master App',
             visible: false,
             topMargin: 130,
-            urlPrefix: 'https://develop.advancedalgos.net/' ,  /* 'http://localhost:1337/'   */   /*  'https://develop.advancedalgos.net/'  */
+            urlPrefix: 'https://charts-dev.advancedalgos.net/' ,  /* 'http://localhost:1337/'   */   /*  'https://charts-dev.advancedalgos.net/'  */
             graphQL: {
             masterAppApiUrl: 'https://app-api.advancedalgos.net/graphql'
         },