Fletcher's fine finish in the 73rd minute sealed the points at Easter Road after Filipe Morais's first-half strike.
Scotland manager George Burley names his squad on Monday for the forthcoming friendly against Croatia and Paatelainen, a former Finland international, believes the Fletcher should be included.
He added: "I hope he has done enough to be in the squad, he has scored a few goals and looks very lively. I think he deserves to be in the squad."
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