diff --git a/castor/scheduler/transfer.py b/castor/scheduler/transfer.py
index 0bfb9ab0d3cecc406e3ccfc22bf2c07ebe1ba1dc..0b30fbf2243810049426024e21bba42a749ea7f4 100644
--- a/castor/scheduler/transfer.py
+++ b/castor/scheduler/transfer.py
@@ -26,7 +26,7 @@
 '''small class defining a CASTOR transfer.
    BaseTransfer is the common abstract class while Transfer and D2dTransfer are the two real types'''
 
-import pwd, subprocess, re, time, os, stat
+import pwd, time, os, stat
 import castor_tools
 
 class TransferType(object):
diff --git a/castor/scheduler/transfermanager/transfermanagerd b/castor/scheduler/transfermanager/transfermanagerd
index 3d21e393a650da737dc64e68fc91fe390d1c82ae..d2e42a61be09d21e8afca6e020f7cb4813689404 100755
--- a/castor/scheduler/transfermanager/transfermanagerd
+++ b/castor/scheduler/transfermanager/transfermanagerd
@@ -26,7 +26,7 @@
 
 """transfer manager daemon of CASTOR."""
 
-import sys, getopt, threading, socket, daemon, Queue
+import sys, getopt, socket, daemon, Queue
 import rpyc, rpyc.utils.server
 import castor_tools, connectionpool, dispatcher, serverqueue, aborter
 from commonexceptions import TransferCanceled, TransferFailed