diff --git a/sherlock.py b/sherlock.py
index 7f8046e..246b6a3 100644
--- a/sherlock.py
+++ b/sherlock.py
@@ -40,6 +40,9 @@ BANNER = r'''
 
 # TODO: fix tumblr
 
+global proxy_list
+
+proxy_list = []
 
 class ElapsedFuturesSession(FuturesSession):
     """