diff --git a/httpbin/core.py b/httpbin/core.py
index 705179d..fd4978d 100644
--- a/httpbin/core.py
+++ b/httpbin/core.py
@@ -16,6 +16,7 @@ import uuid
 import argparse
 
 from flask import Flask, Response, request, render_template, redirect, jsonify as flask_jsonify, make_response, url_for
+from flask_common import Common
 from six.moves import range as xrange
 from werkzeug.datastructures import WWWAuthenticate, MultiDict
 from werkzeug.http import http_date
@@ -53,6 +54,9 @@ tmpl_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'templates')
 app = Flask(__name__, template_folder=tmpl_dir)
 app.debug = bool(os.environ.get('DEBUG'))
 
+# Setup Flask-Common.
+common = Common(app)
+
 # Send app errors to Sentry.
 if 'SENTRY_DSN' in os.environ:
     sentry = Sentry(app, dsn=os.environ['SENTRY_DSN'])
diff --git a/setup.py b/setup.py
index 8f9471d..1a667ab 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,6 @@ setup(
     include_package_data = True, # include files listed in MANIFEST.in
     install_requires=[
         'Flask', 'MarkupSafe', 'decorator', 'itsdangerous', 'six', 'brotlipy',
-        'raven[flask]', 'flask_limiter'
+        'raven[flask]', 'flask_limiter', 'Flask-Common'
     ],
 )