diff --git a/include/html2bbcode.php b/include/html2bbcode.php
index 6e9532c92f..1b940d9497 100644
--- a/include/html2bbcode.php
+++ b/include/html2bbcode.php
@@ -16,7 +16,7 @@ function node2bbcode(&$doc, $oldnode, $attributes, $startbb, $endbb)
 
 function node2bbcodesub(&$doc, $oldnode, $attributes, $startbb, $endbb)
 {
-	$savestart = str_replace('$', '%', $startbb);
+	$savestart = str_replace('$', '\x01', $startbb);
 	$replace = false;
 
 	$xpath = new DomXPath($doc);
@@ -37,7 +37,7 @@ function node2bbcodesub(&$doc, $oldnode, $attributes, $startbb, $endbb)
 
 		foreach ($attributes as $attribute => $value) {
 
-			$startbb = str_replace('%'.++$i, '$1', $startbb);
+			$startbb = str_replace('\x01'.++$i, '$1', $startbb);
 
 			if (strpos('*'.$startbb, '$1') > 0) {