diff --git a/scripts/spacecruft-greenctld b/scripts/spacecruft-greenctld
index 15dbf21..a068801 100755
--- a/scripts/spacecruft-greenctld
+++ b/scripts/spacecruft-greenctld
@@ -8,5 +8,6 @@ source env/bin/activate
 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
+	-e /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AQ02D9QB-if00-port0	\
+	-a /dev/serial/by-id/usb-FTDI_FT232R_USB_UART_AB0ODJV6-if00-port0
+