diff --git a/gtm-architect/geminiService.ts b/gtm-architect/geminiService.ts
index 5264d66e..9a9f15a7 100644
--- a/gtm-architect/geminiService.ts
+++ b/gtm-architect/geminiService.ts
@@ -1,6 +1,6 @@
 import { Phase1Data, Phase2Data, Phase3Data, Phase4Data, Phase6Data, Phase7Data, Phase8Data, Phase9Data, Language } from "./types";
 
-const API_BASE_URL = '/api'; // Using relative path to proxy through Vite/NGINX
+const API_BASE_URL = './api'; // Relative path to respect Nginx /gtm/ routing
 
 const callApi = async <T>(endpoint: string, mode: string, payload: object): Promise<T> => {
     try {