diff --git a/impl/test/layer1/test_rx_file.c b/impl/test/layer1/test_rx_file.c
index 201864b..b8afa96 100644
--- a/impl/test/layer1/test_rx_file.c
+++ b/impl/test/layer1/test_rx_file.c
@@ -106,6 +106,7 @@ int main(int argc, char **argv)
 
 	firdecim_crcf decim = firdecim_crcf_create_kaiser(SDR_OVERSAMPLING, 9, 60.0f);
 	nco_crcf rx_nco = nco_crcf_create(LIQUID_NCO);
+	nco_crcf_set_frequency(rx_nco, 2 * 3.14159 * SDR_RX_IF_SHIFT / SDR_RX_SAMPLING_RATE);
 
 	inputfile = fopen(argv[1], "rb");
 	if(!inputfile) {