diff --git a/surfsense_backend/.env.example b/surfsense_backend/.env.example
index dfb7db8..5d4417f 100644
--- a/surfsense_backend/.env.example
+++ b/surfsense_backend/.env.example
@@ -9,6 +9,7 @@ AUTH_TYPE=GOOGLE or LOCAL
 GOOGLE_OAUTH_CLIENT_ID=924507538m
 GOOGLE_OAUTH_CLIENT_SECRET=GOCSV
 GOOGLE_CALENDAR_REDIRECT_URI=http://localhost:8000/api/v1/auth/google/calendar/connector/callback
+GOOGLE_GMAIL_REDIRECT_URI=http://localhost:8000/api/v1/auth/google/gmail/connector/callback
 
 # Embedding Model
 EMBEDDING_MODEL=mixedbread-ai/mxbai-embed-large-v1
diff --git a/surfsense_backend/app/app.py b/surfsense_backend/app/app.py
index 17f9082..1766c0c 100644
--- a/surfsense_backend/app/app.py
+++ b/surfsense_backend/app/app.py
@@ -1,3 +1,9 @@
+import os
+
+os.environ["OAUTHLIB_RELAX_TOKEN_SCOPE"] = (
+    "1"  # It is to disbale the error "Invalid token scope" when using Google OAuth with increemental scopes
+)
+
 from contextlib import asynccontextmanager
 
 from fastapi import Depends, FastAPI
diff --git a/surfsense_backend/app/config/__init__.py b/surfsense_backend/app/config/__init__.py
index 38a1f3e..38ae616 100644
--- a/surfsense_backend/app/config/__init__.py
+++ b/surfsense_backend/app/config/__init__.py
@@ -51,6 +51,9 @@ class Config:
     # Google Calendar redirect URI
     GOOGLE_CALENDAR_REDIRECT_URI = os.getenv("GOOGLE_CALENDAR_REDIRECT_URI")
 
+    # Google Gmail redirect URI
+    GOOGLE_GMAIL_REDIRECT_URI = os.getenv("GOOGLE_GMAIL_REDIRECT_URI")
+
     # LLM instances are now managed per-user through the LLMConfig system
     # Legacy environment variables removed in favor of user-specific configurations