diff --git a/lib/Service/UserMigrationService.php b/lib/Service/UserMigrationService.php
index 2cd988ec..162538c7 100644
--- a/lib/Service/UserMigrationService.php
+++ b/lib/Service/UserMigrationService.php
@@ -268,7 +268,9 @@ protected function importUser(?IUser $user,
 		}
 
 		$user->setEnabled($data['enabled']);
-		$user->setDisplayName($data['displayName']);
+		if ($user->canChangeDisplayName()) {
+			$user->setDisplayName($data['displayName']);
+		}
 
 		return $user;
 	}