diff --git a/bin/minindn b/bin/minindn
index 51a4c52..7e451aa 100755
--- a/bin/minindn
+++ b/bin/minindn
@@ -13,6 +13,7 @@
 import os.path, time
 import optparse
 import datetime
+from os.path import expanduser
 
 from ndn.nlsr import Nlsr, NlsrConfigGenerator