diff --git a/scripts/spacecruft-greenctld b/scripts/spacecruft-greenctld
index a835903..15dbf21 100755
--- a/scripts/spacecruft-greenctld
+++ b/scripts/spacecruft-greenctld
@@ -5,6 +5,8 @@ source env/bin/activate
 
 #./greenctld -a /dev/ttyUSB0 -e /dev/ttyUSB1 -g
 
+set -x
+
 ./greenctld									\
 	-a /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AQ02D9QB-if00-port0	\
 	-e /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AB0ODJV6-if00-port0