diff --git a/apps/dav/lib/CardDAV/Converter.php b/apps/dav/lib/CardDAV/Converter.php
index a416a9f757ad1..c8add1b96a6e9 100644
--- a/apps/dav/lib/CardDAV/Converter.php
+++ b/apps/dav/lib/CardDAV/Converter.php
@@ -151,7 +151,7 @@ public function splitFullName(string $fullName): array {
 
 	private function getAvatarImage(IUser $user): ?IImage {
 		try {
-			return $user->getAvatarImage(-1);
+			return $user->getAvatarImage(512);
 		} catch (Exception $ex) {
 			return null;
 		}
diff --git a/lib/private/User/User.php b/lib/private/User/User.php
index c68d4ee290ae5..10e9122de8428 100644
--- a/lib/private/User/User.php
+++ b/lib/private/User/User.php
@@ -571,7 +571,7 @@ public function getAvatarImage($size) {
 		}
 
 		$avatar = $this->avatarManager->getAvatar($this->uid);
-		$image = $avatar->get(-1);
+		$image = $avatar->get($size);
 		if ($image) {
 			return $image;
 		}