diff --git a/mining/interfaces.py b/mining/interfaces.py
index b3d44f5..70a73b8 100644
--- a/mining/interfaces.py
+++ b/mining/interfaces.py
@@ -26,14 +26,14 @@ class WorkerManagerInterface(object):
     def authorize(self, worker_name, worker_password):
         # Important NOTE: This is called on EVERY submitted share. So you'll need caching!!!
         return dbi.check_password(worker_name, worker_password)
-
+ 
     def get_user_difficulty(self, worker_name):
         wd = dbi.get_user(worker_name)
         if len(wd) > 6:
-            #dbi.update_worker_diff(worker_name, wd[6])
-            return (True, wd[6])
-        else:
-            return (False, settings.POOL_TARGET)
+            if wd[6] != 0:
+                return (True, wd[6])
+                #dbi.update_worker_diff(worker_name, wd[6])
+        return (False, settings.POOL_TARGET)
 
     def register_work(self, worker_name, job_id, difficulty):
 	    now = Interfaces.timestamper.time()