Hojlund posted in the immediate aftermath of Manchester United's 3-3 draw with Porto on Thursday.
He showed himself celebrating his goal and had the caption: "Luckily I had 6 weeks to practice my celebration. A win would’ve made it perfect."
However, some fans were upset at the positive nature of the post, given United are going through a run of poor results this season.
Hojlund posted on his socials: "I've seen some anger about my post of yesterday.
"I never intended that... I was only happy to be back out there on the scoresheet again after a tough few weeks where I couldn't play and score.
"Obviously we go for the win and I will give everything to make you guys happy, sorry yesterday's post was not the case.
"Let's move on, getting ready to give everything again on Sunday."