diff --git a/themes/material/home.theme.php b/themes/material/home.theme.php
index badd677b..ad5949be 100644
--- a/themes/material/home.theme.php
+++ b/themes/material/home.theme.php
@@ -29,7 +29,7 @@ EOD
 		$message_html = empty($main_text)     ? "" : "<div class='space' id='message'>$main_text</div>";
 		$counter_html = empty($counter_text)  ? "" : "<div class='mdl-typography--text-center' id='counter'>$counter_text</div>";
 		$contact_link = empty($contact_link) ? "" : "<br><a href='mailto:$contact_link'>Contact</a> -";
-		$main_links_html = empty($main_links) ? "" : preg_replace(shm-clink, mdl-navigation__link, $main_links);
+		$main_links_html = empty($main_links) ? "" : preg_replace("shm-clink", "mdl-navigation__link", $main_links);
 		$search_html = "
 			<div class='mdl-grid'>
 				<div class='mdl-layout-spacer'></div>