diff --git a/utils/bobbycan.lua b/utils/bobbycan.lua
index 679d6a3..149daa1 100644
--- a/utils/bobbycan.lua
+++ b/utils/bobbycan.lua
@@ -29,9 +29,9 @@ local motor_cmds = {
     [ 0] = { len = 1, abbr = "enable",        name = "Enable",       type = ftypes.BOOLEAN },
     [ 1] = { len = 2, abbr = "inp_tgt",       name = "Input target", type = ftypes.INT16 },
     [ 2] = { len = 1, abbr = "ctrl_typ",      name = "Control type", type = ftypes.UINT8,
-        valuestring = {"Commutation", "Sinusoidal", "FOC"} },
+        valuestring = {[0] = "Commutation", [1] = "Sinusoidal", [2] = "FOC"} },
     [ 3] = { len = 1, abbr = "ctrl_mod",      name = "Control mode", type = ftypes.UINT8,
-        valuestring = {"Open", "Voltage", "Speed", "Torque"} },
+        valuestring = {[0] = "Open", [1] = "Voltage", [2] = "Speed", [3] = "Torque"} },
     [ 4] = { len = 1, abbr = "imotmax",       name = "Maximum motor current",           type = ftypes.UINT8,   format = format_cmd_current },
     [ 5] = { len = 1, abbr = "idcmax",        name = "Maximum DC link current",         type = ftypes.UINT8,   format = format_cmd_current },
     [ 6] = { len = 2, abbr = "nmotmax",       name = "Maximum speed",                   type = ftypes.UINT16,  format = format_speed },