diff --git a/apps/dav/lib/Avatars/AvatarNode.php b/apps/dav/lib/Avatars/AvatarNode.php
index 17edf80d21..4030f48251 100644
--- a/apps/dav/lib/Avatars/AvatarNode.php
+++ b/apps/dav/lib/Avatars/AvatarNode.php
@@ -62,8 +62,9 @@ class AvatarNode extends File {
 		ob_start();
 		if ($this->ext === 'png') {
 			imagepng($res);
+		} else {
+			imagejpeg($res);
 		}
-		imagejpeg($res);
 
 		return ob_get_clean();
 	}