diff --git a/Lib/mimetools.py b/Lib/mimetools.py
index 67623ec7208..067a2cd70f1 100644
--- a/Lib/mimetools.py
+++ b/Lib/mimetools.py
@@ -125,7 +125,6 @@ def choose_boundary():
 
     global _prefix
     import time
-    import random
     if _prefix is None:
         import socket
         hostid = socket.gethostbyname(socket.gethostname())