diff --git a/build/commands/markdown/MarkdownParser.php b/build/commands/markdown/MarkdownParser.php
index 9d7796f188..0e702dcb0b 100644
--- a/build/commands/markdown/MarkdownParser.php
+++ b/build/commands/markdown/MarkdownParser.php
@@ -17,7 +17,7 @@ public function _doHeaders_callback_setext($matches)
 	{
 		if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
 			return $matches[0];
-		$level = $matches[3]{0} == '=' ? 1 : 2;
+		$level = $matches[3][0] == '=' ? 1 : 2;
 		$text = $this->runSpanGamut($matches[1]);
 		$attr = $this->doHeaderId($text);
 		$block = "<h$level$attr>".$text."</h$level>";
diff --git a/docs/viewer/components/MarkdownParser.php b/docs/viewer/components/MarkdownParser.php
index 719814f4b6..8e67b51e59 100644
--- a/docs/viewer/components/MarkdownParser.php
+++ b/docs/viewer/components/MarkdownParser.php
@@ -24,7 +24,7 @@ public function _doHeaders_callback_setext($matches)
 	{
 		if ($matches[3] == '-' && preg_match('{^- }', $matches[1]))
 			return $matches[0];
-		$level = $matches[3]{0} == '=' ? 1 : 2;
+		$level = $matches[3][0] == '=' ? 1 : 2;
 		$text = $this->runSpanGamut($matches[1]);
 		$attr = $this->doHeaderId($text);
 		$block = "<h$level$attr>".$text."</h$level>";