The Dons have secured their return to Europe for the third season in a row with eight league games still to go.
St Johnstone drawing 1-1 with Ross County in Perth last night means neither can now overtake the Dons in the Scottish Premiership table.
It guarantees McInnes’ men a place in next season’s Europa League qualifiers if they fail to beat Celtic to the league title.
It’s the first time since 1992 that the Dons have made it to Europe in three successive seasons.
Dons manager McInnes said: “We are pleased to be back in Europe but it’s not something we are hung up on.”