diff --git a/ucloud/scheduler/main.py b/ucloud/scheduler/main.py
index 9ebc4c8..33e94f2 100755
--- a/ucloud/scheduler/main.py
+++ b/ucloud/scheduler/main.py
@@ -46,7 +46,7 @@ def main():
                     r = RequestEntry.from_scratch(type="ScheduleVM",
                                                   uuid=pending_vm_entry.uuid,
                                                   hostname=pending_vm_entry.hostname,
-                                                  request_prefix=config['etcd']["REQUEST_PREFIX"])
+                                                  request_prefix=config['etcd']['REQUEST_PREFIX'])
                     request_pool.put(r)
 
             elif request_entry.type == RequestType.ScheduleVM:
@@ -72,7 +72,7 @@ def main():
                         r = RequestEntry.from_scratch(type=RequestType.InitVMMigration,
                                                       uuid=request_entry.uuid,
                                                       destination=request_entry.destination,
-                                                      request_prefix=config['etcd']["REQUEST_PREFIX"])
+                                                      request_prefix=config['etcd']['REQUEST_PREFIX'])
                         request_pool.put(r)
 
                 # If the Request is about a VM that just want to get started/created