diff --git a/secop/protocol/interface/tcp.py b/secop/protocol/interface/tcp.py
index 58ccc33..900014f 100644
--- a/secop/protocol/interface/tcp.py
+++ b/secop/protocol/interface/tcp.py
@@ -25,6 +25,7 @@ import sys
 import socket
 import socketserver
 import threading
+import time
 
 from secop.datatypes import StringType, BoolType
 from secop.errors import SECoPError
@@ -133,6 +134,7 @@ class TCPRequestHandler(socketserver.BaseRequestHandler):
                 if result[0].startswith(ERRORPREFIX) and not detailed_errors:
                     # strip extra information
                     result[2][2].clear()
+                    result[2][2]['t'] = time.time()
                 self.send_reply(result)
 
     def send_reply(self, data):