diff --git a/src/main/scala/util/StringUtil.scala b/src/main/scala/util/StringUtil.scala
index bad0ada..d8ab997 100644
--- a/src/main/scala/util/StringUtil.scala
+++ b/src/main/scala/util/StringUtil.scala
@@ -20,7 +20,7 @@
 
   def urlDecode(value: String): String = URLDecoder.decode(value, "UTF-8")
 
-  def splitWords(value: String): Array[String] = value.split("[ \\t　]+]")
+  def splitWords(value: String): Array[String] = value.split("[ \\t　]+")
 
   def escapeHtml(value: String): String =
     value.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;").replace("\"", "&quot;")