diff --git a/stacosys/interface/api.py b/stacosys/interface/api.py
index 036f657..3e5ef04 100644
--- a/stacosys/interface/api.py
+++ b/stacosys/interface/api.py
@@ -4,7 +4,6 @@
 import logging
 from flask import abort, jsonify, request
 
-from stacosys.conf.config import ConfigParameter
 from stacosys.interface import app
 from stacosys.model.comment import Comment
 
@@ -22,7 +21,7 @@ def query_comments():
     comments = []
     try:
         token = request.args.get("token", "")
-        if token != app.config.get(ConfigParameter.SITE_TOKEN):
+        if token != app.config.get("SITE_TOKEN"):
             abort(401)
 
         url = request.args.get("url", "")
@@ -56,7 +55,7 @@ def query_comments():
 def get_comments_count():
     try:
         token = request.args.get("token", "")
-        if token != app.config.get(ConfigParameter.SITE_TOKEN):
+        if token != app.config.get("SITE_TOKEN"):
             abort(401)
 
         url = request.args.get("url", "")
diff --git a/stacosys/interface/form.py b/stacosys/interface/form.py
index f00c688..5bb04c9 100644
--- a/stacosys/interface/form.py
+++ b/stacosys/interface/form.py
@@ -5,7 +5,6 @@ import logging
 from datetime import datetime
 from flask import abort, redirect, request
 
-from stacosys.conf.config import ConfigParameter
 from stacosys.interface import app
 from stacosys.model.comment import Comment
 
@@ -21,7 +20,7 @@ def new_form_comment():
 
         # validate token: retrieve site entity
         token = data.get("token", "")
-        if token != app.config.get(ConfigParameter.SITE_TOKEN):
+        if token != app.config.get("SITE_TOKEN"):
             abort(401)
 
         # honeypot for spammers