diff --git a/apps/modes_gui b/apps/modes_gui
index 0d2ed4e..5056c46 100755
--- a/apps/modes_gui
+++ b/apps/modes_gui
@@ -23,7 +23,7 @@ import os, sys, time, threading, datetime, math, csv
 from optparse import OptionParser
 from PyQt4 import QtCore,QtGui
 from PyQt4.Qwt5 import Qwt
-from gnuradio import gr, gru, optfir, eng_notation, blks2
+from gnuradio import gr, eng_notation
 from gnuradio.eng_option import eng_option
 from gnuradio.gr.pubsub import pubsub
 import air_modes