diff --git a/classes/Search.php b/classes/Search.php
index e76f753b3..e13caa626 100644
--- a/classes/Search.php
+++ b/classes/Search.php
@@ -52,7 +52,7 @@ define('PREG_CLASS_SEARCH_EXCLUDE',
 '\x{2ce5}-\x{2cff}\x{2d6f}\x{2e00}-\x{3005}\x{3007}-\x{303b}\x{303d}-\x{303f}'.
 '\x{3099}-\x{309e}\x{30a0}\x{30fb}\x{30fd}\x{30fe}\x{3190}-\x{319f}\x{31c0}-'.
 '\x{31cf}\x{3200}-\x{33ff}\x{4dc0}-\x{4dff}\x{a015}\x{a490}-\x{a716}\x{a802}'.
-'\x{E000}-\x{F8FF}\x{FB29}\x{FD3E}-\x{FD3F}\x{FDFC}-\x{FDFD}'.
+'\x{e000}-\x{f8ff}\x{fb29}\x{fd3e}-\x{fd3f}\x{fdfc}-\x{fdfd}'.
 '\x{fd3f}\x{fdfc}-\x{fe6b}\x{feff}-\x{ff0f}\x{ff1a}-\x{ff20}\x{ff3b}-\x{ff40}'.
 '\x{ff5b}-\x{ff65}\x{ff70}\x{ff9e}\x{ff9f}\x{ffe0}-\x{fffd}');