diff --git a/wp-includes/formatting.php b/wp-includes/formatting.php
index 27d64e1dc6..ed87b2b8ad 100644
--- a/wp-includes/formatting.php
+++ b/wp-includes/formatting.php
@@ -1742,7 +1742,7 @@ function make_clickable( $text ) {
 	}
 
 	// Cleanup of accidental links within links
-	$r = preg_replace( '#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
+	$r = preg_replace( '#(<a([ \r\n\t]+[^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
 	return $r;
 }