diff --git a/src/Helpers/Sanitizer.php b/src/Helpers/Sanitizer.php
index 8c7a573..88f1b87 100644
--- a/src/Helpers/Sanitizer.php
+++ b/src/Helpers/Sanitizer.php
@@ -36,17 +36,17 @@ public static function parseAllLinks(?string $content): string
     protected static function parseLink(string $content, array $linksToCheck, string $rel)
     {
         return preg_replace_callback('/<a\s+([^>]+)>/', function ($matches) use ($linksToCheck, $rel) {
-            if (!preg_match('/rel="/', $matches[0])) {
+            if (! preg_match('/rel="/', $matches[0])) {
                 preg_match('/href="([^"]*)"/', $matches[1], $hrefMatches);
                 $link = $hrefMatches[1];
                 foreach ($linksToCheck as $linkToCheck) {
                     if (@preg_match($linkToCheck, $link)) {
                         if (preg_match($linkToCheck, $link)) {
-                            return str_replace('<a ' . $matches[1], '<a ' . $matches[1] . ' rel="' . $rel . '"', $matches[0]);
+                            return str_replace('<a '.$matches[1], '<a '.$matches[1].' rel="'.$rel.'"', $matches[0]);
                         }
                     } else {
                         if (strpos($link, $linkToCheck) === 0) {
-                            return str_replace('<a ' . $matches[1], '<a ' . $matches[1] . ' rel="' . $rel . '"', $matches[0]);
+                            return str_replace('<a '.$matches[1], '<a '.$matches[1].' rel="'.$rel.'"', $matches[0]);
                         }
                     }
                 }