Word Protect Macro - Works in VB Editor but not from document

Hello, first post so apologies for any bloopers.

Using two macros to unlock and re-lock a document to EnforceStyleLock protection (limit formatting to permitted styles).
Unlock macro works fine from both VB editor and Word application.

Lock macro Works fine from within VB editor.
Soon as I try and run it from Word application get the "Argument not Optional" error message.

Sub DocLock()
ActiveDocument.Protect Type:=wdNoProtection, NoReset:=True, Password:="passwordstring", UseIRM:=False, EnforceStyleLock:=True
End Sub

Any thoughts greatly appreciated.

Kind regards,
patricus

Seems to work fine here. What version of Word and how are you trying to run it from within Word.

Hi Greg, thank you for taking the time to reply.
Just your confirmation that it worked for you made me re-examine the one element I hadn't even considered.
I tried re-assigning a different button on the QAT to the macro.
Soon as I did that it solved it and works. Hadn't considered that and wouldn't have without your reply.