diff --git a/app/config.py b/app/config.py
index 9dea13cb..ae21388f 100644
--- a/app/config.py
+++ b/app/config.py
@@ -246,7 +246,10 @@ PROTON_VALIDATE_CERTS = "PROTON_VALIDATE_CERTS" in os.environ
 CONNECT_WITH_PROTON = "CONNECT_WITH_PROTON" in os.environ
 PROTON_EXTRA_HEADER_NAME = os.environ.get("PROTON_EXTRA_HEADER_NAME")
 PROTON_EXTRA_HEADER_VALUE = os.environ.get("PROTON_EXTRA_HEADER_VALUE")
-CONNECT_WITH_PROTON_COOKIE_NAME = os.environ.get("CONNECT_WITH_PROTON_COOKIE_NAME")
+CONNECT_WITH_PROTON_COOKIE_NAME = os.environ.get(
+    "CONNECT_WITH_PROTON_COOKIE_NAME", "enable-proton"
+)
+PROTON_ALLOW_INTERNAL_LINK = "PROTON_ALLOW_INTERNAL_LINK" in os.environ
 
 # in seconds
 AVATAR_URL_EXPIRATION = 3600 * 24 * 7  # 1h*24h/d*7d=1week
diff --git a/app/internal/integrations.py b/app/internal/integrations.py
index 5bb1efa9..1495195e 100644
--- a/app/internal/integrations.py
+++ b/app/internal/integrations.py
@@ -1,8 +1,8 @@
 import arrow
-from app.config import CONNECT_WITH_PROTON_COOKIE_NAME, URL
 from flask import make_response, redirect, url_for, flash
 from flask_login import current_user
 from .base import internal_bp
+from app import config
 
 
 @internal_bp.route("/integrations/proton")
@@ -13,13 +13,13 @@ def set_enable_proton_cookie():
         redirect_url = url_for("auth.login")
 
     response = make_response(redirect(redirect_url))
-    if CONNECT_WITH_PROTON_COOKIE_NAME:
+    if config.PROTON_ALLOW_INTERNAL_LINK:
         flash("You can now connect your Proton and your SimpleLogin account", "success")
         response.set_cookie(
-            CONNECT_WITH_PROTON_COOKIE_NAME,
+            config.CONNECT_WITH_PROTON_COOKIE_NAME,
             value="true",
             expires=arrow.now().shift(days=30).datetime,
-            secure=True if URL.startswith("https") else False,
+            secure=True if config.URL.startswith("https") else False,
             httponly=True,
             samesite="Lax",
         )