diff --git a/DEVELOPER_NOTES.rst b/DEVELOPER_NOTES.rst
index 2ee4460a3..15975f5fd 100644
--- a/DEVELOPER_NOTES.rst
+++ b/DEVELOPER_NOTES.rst
@@ -30,7 +30,8 @@ To determine which user is locking a board, use:
 Selecting a development board with artiq_flash
 ==============================================
 
-::
+Use the ``bus:port`` notation::
+
   artiq_flash --preinit-command "ftdi_location 5:2"   # Sayma 1
   artiq_flash --preinit-command "ftdi_location 3:10"  # Sayma 2
   artiq_flash --preinit-command "ftdi_location 5:1"   # Sayma 3