diff --git a/oml/tor.py b/oml/tor.py
index 8ce89de..d43df76 100644
--- a/oml/tor.py
+++ b/oml/tor.py
@@ -1,4 +1,5 @@
 import os
+import re
 import sys
 import subprocess
 from threading import Thread
@@ -45,6 +46,15 @@ CookieAuthentication 1
 DataDirectory {base}/TorData
 DirReqStatistics 0
                 '''.strip().format(base=settings.data_path))
+        else:
+            with open(torrc, 'r') as fd:
+                data = fd.read()
+            modified_data = re.sub('DataDirectory.*?/TorData',
+                    'DataDirectory {base}/TorData'.format(base=settings.data_path), data)
+            if data != modified_data:
+                with open(torrc, 'w') as fd:
+                    fd.write(modified_data)
+
         return defaults, torrc
 
     def run(self):