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-rw-r--r--libs/sys/luasrc/sys.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/sys/luasrc/sys.lua b/libs/sys/luasrc/sys.lua
index 460764c15..d9fe5ab25 100644
--- a/libs/sys/luasrc/sys.lua
+++ b/libs/sys/luasrc/sys.lua
@@ -687,7 +687,7 @@ end
-- @param iface Wireless interface (optional)
-- @return Table of available channels
function wifi.channels(iface)
- local t = iwinfo.type(iface)
+ local t = iwinfo.type(iface or "")
local cns
if t and iwinfo[t] then
cns = iwinfo[t].freqlist(iface)