diff --git a/src/Content/Text/Plaintext.php b/src/Content/Text/Plaintext.php
index 5c8629f62..6e8d0daff 100644
--- a/src/Content/Text/Plaintext.php
+++ b/src/Content/Text/Plaintext.php
@@ -27,6 +27,7 @@ use Friendica\Util\Network;
 
 class Plaintext
 {
+	// Assumed length of an URL when shortened via the network's own url shortener (e.g. Twitter)
 	const URL_LENGTH = 23;
 
 	/**