NDP Leader Thomas Mulcair speaks to the media outside the New Democratic Party caucus strategy session on Parliament Hill in Ottawa, January 17, 2013. REUTERS/Patrick Doyle

OTTAWA - NDP Leader Thomas Mulcair is no fan of the Clarity Act, but he's still hoping all MPs in his caucus vote against a Bloc Quebecois effort to repeal it through Bill C-457.

"The Clarity Act is not clear and it settles nothing," Mulcair said Monday, adding his party wants to improve rather than repeal it.

Mulcair said "of course" the NDP will have a free vote on C-457, even though his caucus includes Quebec MPs who've supported separatist causes in the past and hard-left MP Libby Davies, who opposed the Clarity Act when it was introduced.