diff --git a/bin/minindnedit b/bin/minindnedit
index 70e0dce..8c56cfc 100755
--- a/bin/minindnedit
+++ b/bin/minindnedit
@@ -42,7 +42,7 @@
 from mininet.net import Mininet, VERSION
 from mininet.util import ipStr, netParse, ipAdd, quietRun
 from mininet.util import buildTopo
-from mininet.util import custom, customConstructor
+from mininet.util import custom
 from mininet.term import makeTerm, cleanUpScreens
 from mininet.node import Controller, RemoteController, NOX, OVSController
 from mininet.node import CPULimitedHost, Host, Node