diff --git a/lib/latest.lib.php b/lib/latest.lib.php
index 214147b02..150438b8e 100644
--- a/lib/latest.lib.php
+++ b/lib/latest.lib.php
@@ -54,7 +54,7 @@ function latest($skin_dir='', $bo_table, $rows=10, $subject_len=40, $cache_time=
 
         if($cache_fwrite) {
             $handle = fopen($cache_file, 'w');
-            $cache_content = "<?php\nif (!defined('_GNUBOARD_')) exit;\n\$bo_subject=\"".$bo_subject."\";\n\$list=".var_export($list, true)."?>";
+            $cache_content = "<?php\nif (!defined('_GNUBOARD_')) exit;\n\$bo_subject='".$bo_subject."';\n\$list=".var_export($list, true)."?>";
             fwrite($handle, $cache_content);
             fclose($handle);
         }