I replaced $$$Lower() but still getting <SYNTAX>

Here is the alias in the file:

:alias enablebi do EnableDeepSee^%SYS.cspServer("/csp/"_$zcvt($namespace,"L"))

And here is SYNTAX i'm getting:

IRISAPP>:enablebi 
do EnableDeepSee^%SYS.cspServer("/csp/"_$zcvt($namespace,"L")

DO EnableDeepSee^%SYS.cspServer("/csp/"_$ZCVT($NAMESPACE,"L")
^
<SYNTAX>

Here is what I have in the alias:

IRISAPP>:enablebi
do EnableDeepSee^%SYS.cspServer("/csp/"_$zcvt($namespace,"L")

DO EnableDeepSee^%SYS.cspServer("/csp/"_$ZCVT($NAMESPACE,"L")
^
<SYNTAX>
IRISAPP>:alias
  enablebi              do EnableDeepSee^%SYS.cspServer("/csp/"_$zcvt($namespace,"L")

IRISAPP>

Interesting, if I set the alias in terminal as @Robert Cemper did it works.

Perhaps the issue is in line endings? Any ideas?