diff --git a/lib/Service/Importer/Systems/TrelloJsonService.php b/lib/Service/Importer/Systems/TrelloJsonService.php
index 71c897cec..e10e0906d 100644
--- a/lib/Service/Importer/Systems/TrelloJsonService.php
+++ b/lib/Service/Importer/Systems/TrelloJsonService.php
@@ -133,7 +133,7 @@ function (\stdClass $a) use ($trelloCard) {
 				$cardId = $this->cards[$trelloCard->id]->getId();
 				$comment = new Comment();
 				if (!empty($this->getImportService()->getConfig('uidRelation')->{$trelloComment->memberCreator->username})) {
-					$actor = $this->getImportService()->getConfig('uidRelation')->{$trelloComment->memberCreator->username}->getUID();
+					$actor = $this->getImportService()->getConfig('uidRelation')->{$trelloComment->memberCreator->username};
 				} else {
 					$actor = $this->getImportService()->getConfig('owner')->getUID();
 				}
@@ -361,7 +361,7 @@ private function translateColor(?string $color): string {
 
 	private function replaceUsernames(string $text): string {
 		foreach ($this->getImportService()->getConfig('uidRelation') as $trello => $nextcloud) {
-			$text = str_replace($trello, $nextcloud->getUID(), $text);
+			$text = str_replace($trello, $nextcloud, $text); 
 		}
 		return $text;
 	}