The Hoops are 15 points clear of Motherwell at the top of the table but have slipped up at times on the domestic front this season due, in part, to a Champions League campaign which ended only last week when they fell foul of Juventus at the last-16 stage.
Aside from the two battles with the Italian giants, which Celtic lost 5-0 on aggregate, the Parkhead side lost to Motherwell and Ross County, more surprisingly last week when they surrendered a two-goal lead to lose 3-2 in Dingwall.
Ahead of the visit of Aberdeen on Saturday, however, the Hoops boss explained the lapses before vowing to get back on track against the Dons.
He said: "I have prioritised other games in the last two league games.
"Against Motherwell I had my eye on the St Mirren (William Hill Scottish Cup) quarter-final which I thought was a huge game for us in the context of the season.
"Obviously the Ross County game was a few days after the last-16 game in Turin.
"What you will see this weekend is a fresh Celtic team ready to go for the title.
"We have already improved on last season on the pitch and with the success we have had in Europe we have improved off the pitch, for me that is as important as anything else."