diff --git a/ui/src/stores/modules/application.ts b/ui/src/stores/modules/application.ts
index 0709b2e293a..470abef82d8 100644
--- a/ui/src/stores/modules/application.ts
+++ b/ui/src/stores/modules/application.ts
@@ -1,9 +1,18 @@
 import { defineStore } from 'pinia'
 const useApplicationStore = defineStore('application', {
   state: () => ({
-    location: `${window.location.origin}${window.MaxKB.chatPrefix ? window.MaxKB.chatPrefix : window.MaxKB.prefix}/`,
+    location: `${getChatOrigin()}${
+      window.MaxKB.chatPrefix ? window.MaxKB.chatPrefix : window.MaxKB.prefix
+    }/`,
   }),
   actions: {},
 })
 
+function getChatOrigin() {
+  if (import.meta.env.DEV && window.location.port === '3000') {
+    return `${window.location.protocol}//${window.location.hostname}:3001`
+  }
+  return window.location.origin
+}
+
 export default useApplicationStore