diff --git a/apps/grgsm_trx b/apps/grgsm_trx
index fbc9350..a5cb1ee 100755
--- a/apps/grgsm_trx
+++ b/apps/grgsm_trx
@@ -25,9 +25,9 @@
 import getopt
 import sys
 
-from ctrl_if_bb import CTRLInterfaceBB
-from radio_if import RadioInterface
-from fake_pm import FakePM
+from grgsm.trx import ctrl_if_bb
+from grgsm.trx import radio_if
+from grgsm.trx import fake_pm
 
 COPYRIGHT = \
 	"Copyright (C) 2016-2017 by Vadim Yanitskiy <axilirator@gmail.com>\n" \
@@ -57,17 +57,17 @@
 
 	def run(self):
 		# Init Radio interface
-		self.radio = RadioInterface(self.phy_args, self.phy_subdev_spec,
+		self.radio = radio_if(self.phy_args, self.phy_subdev_spec,
 			self.phy_sample_rate, self.phy_gain, self.phy_ppm,
 			self.remote_addr, self.base_port)
 
 		# Power measurement emulation
 		# Noise: -120 .. -105
 		# BTS: -75 .. -50
-		self.pm = FakePM(-120, -105, -75, -50)
+		self.pm = fake_pm(-120, -105, -75, -50)
 
 		# Init TRX CTRL interface
-		self.server = CTRLInterfaceBB(self.remote_addr,
+		self.server = ctrl_if_bb(self.remote_addr,
 			self.base_port + 101, self.base_port + 1,
 			self.radio, self.pm)