diff --git a/app/__init__.py b/app/__init__.py
index 3320af1..1198510 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -1,7 +1,7 @@
 from flask import Flask, url_for, render_template, abort
 import os
 import json
-from app.config import PANDOC_LINK, PANDOC_PATH
+from app.config import PANDOC_LINK, PANDOC_PATH, WHITELIST_PATH
 from app.hash_manager import hash_file_sha512
 import subprocess
 
@@ -27,6 +27,11 @@ def dated_url_for(endpoint, **values):
 
 def render_page(page):
     path = f'{PANDOC_PATH}/{page}'
+    whitelist = WHITELIST_PATH
+    with open(whitelist, 'r') as f:
+        lines = f.read().splitlines()
+        if page not in lines:
+            raise Exception("Page doesn't exist!")
     if not os.path.exists(f'{path}'):
         raise Exception("Page doesn't exist!")
     in_filename = f'{path}/main.md'
@@ -39,12 +44,19 @@ def render_page(page):
 @app.route(f'/{PANDOC_LINK}/<page>')
 def get_pandoc_page(page):
     path = f'{PANDOC_PATH}/{page}'
+    whitelist = WHITELIST_PATH
+    with open(whitelist, 'r') as f:
+        lines = f.read().splitlines()
+        if page not in lines:
+            print(f'Access to page not in list {page}')
+            return 'This page does not exist'
     if not os.path.exists(f'{path}'):
-        abort(404)
+        # TODO: Add 404 handler
+        return 'This page does not exist'
     with open(f'{path}/config.json') as f:
         data = json.loads(f.read())
     if not os.path.exists(f'{path}/render.html') or not os.path.exists(f'{path}/render.html.lock'):
-        print('Rendered page or lockfile for {page} does not exist! Rendering {page}')
+        print(f'Rendered page or lockfile for {page} does not exist! Rendering {page}')
         render_page(page)
     else:
         with open(f'{path}/render.html.lock', 'r') as f:
@@ -52,7 +64,7 @@ def get_pandoc_page(page):
         current_hash = hash_file_sha512(f'{path}/main.md')
         if rendered_hash != current_hash:
             print(f'CURRENT: {current_hash}, RENDERED: {rendered_hash}')
-            print('Integrity test failed, rendering {page}!')
+            print(f'Integrity test failed, rendering {page}!')
             render_page(page)
     template = data['template']
     with open(f'{path}/render.html', 'r') as f:
diff --git a/app/config.py b/app/config.py
index 232863d..b77b5cd 100644
--- a/app/config.py
+++ b/app/config.py
@@ -1,2 +1,3 @@
 PANDOC_LINK = 'page'
 PANDOC_PATH = '/home/thematdev/pandoc_pages'
+WHITELIST_PATH = f'{PANDOC_PATH}/pages'