Kompany was withdrawn 10 minutes into the second half of his nation's Euro 2016 qualifying Group B opener, which saw Kevin De Bruyne and Dries Mertens score twice each, while Nacer Chadli and Divock Origi added one apiece.
It got Belgium's campaign off to a strong start but the match was dampened somewhat by worries over Kompany's fitness.
However, the Belgium and Manchester City captain explained his substitution was merely a precaution and said he was now focusing on Monday's clash against Bosnia-Herzegovina.
"I came off as a precaution," Kompany told RTBF.
"Before the game, I already had a slight problem and the coach decided to take me out.
"I am now getting ready for Bosnia. It was not easy out there."
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