diff --git a/pywb/cdx/cdxserver.py b/pywb/cdx/cdxserver.py
index e37c4d82..1a68f7e4 100644
--- a/pywb/cdx/cdxserver.py
+++ b/pywb/cdx/cdxserver.py
@@ -149,10 +149,12 @@ def create_cdx_server(config, ds_rules_file=None):
         paths = config.get('index_paths')
         surt_ordered = config.get('surt_ordered', True)
         perms_checker = config.get('perms_checker')
+        pass_config = config
     else:
         paths = config
         surt_ordered = True
         perms_checker = None
+        pass_config = None
 
     logging.debug('CDX Surt-Ordered? ' + str(surt_ordered))
 
@@ -162,6 +164,7 @@ def create_cdx_server(config, ds_rules_file=None):
         server_cls = CDXServer
 
     return server_cls(paths,
+                      config=pass_config,
                       surt_ordered=surt_ordered,
                       ds_rules=ds_rules_file,
                       perms_checker=perms_checker)
diff --git a/pywb/cdx/cdxsource.py b/pywb/cdx/cdxsource.py
index 26b1b4cb..783cf36b 100644
--- a/pywb/cdx/cdxsource.py
+++ b/pywb/cdx/cdxsource.py
@@ -3,8 +3,7 @@ from pywb.utils.loaders import SeekableTextFileReader
 
 import urllib
 import urllib2
-import redis
-
+import itertools
 
 #=================================================================
 class CDXSource(object):
@@ -88,11 +87,13 @@ class RedisCDXSource(CDXSource):
     DEFAULT_KEY_PREFIX = 'c:'
 
     def __init__(self, redis_url, config=None):
+        import redis
         self.redis = redis.StrictRedis.from_url(redis_url)
 
-        key_prefix = self.DEFAULT_KEY_PREFIX
+        self.key_prefix = self.DEFAULT_KEY_PREFIX
         if config:
-            self.key_prefix = config.get('redis_key_prefix', key_prefix)
+            self.key_prefix = config.get('redis_key_prefix', self.key_prefix)
+        
 
     def load_cdx(self, params):
         """