diff --git a/GameEngine/Lang/en.php b/GameEngine/Lang/en.php
index cb16489c..f3a2ab0c 100755
--- a/GameEngine/Lang/en.php
+++ b/GameEngine/Lang/en.php
@@ -130,7 +130,7 @@ define("CROP","Crop");
 define("LEVEL","Level");
 define("CROP_COM",CROP." consumption");
 define("PER_HR","per hour");
-define("PROD_HEADER","Production");
+define("PRODUCTION","Production");
 define("CAPITAL1","Capital");
 define("MULTI_V_HEADER","Villages");
 define("ANNOUNCEMENT","Announcement");
diff --git a/GameEngine/Lang/zh_tw.php b/GameEngine/Lang/zh_tw.php
index 0cd267b3..907def3b 100644
--- a/GameEngine/Lang/zh_tw.php
+++ b/GameEngine/Lang/zh_tw.php
@@ -130,7 +130,7 @@ define("CROP","粮食");
 define("LEVEL","等级");
 define("CROP_COM",CROP."消耗");
 define("PER_HR","每小时");
-define("PROD_HEADER","产量");
+define("PRODUCTION","产量");
 define("CAPITAL1","Capital");
 define("MULTI_V_HEADER","村民");
 define("ANNOUNCEMENT","公告");
diff --git a/Templates/production.tpl b/Templates/production.tpl
index 1af2974e..d17d92c2 100644
--- a/Templates/production.tpl
+++ b/Templates/production.tpl
@@ -11,7 +11,7 @@
 ?>
 <table id="production" cellpadding="1" cellspacing="1">
 	<thead><tr>
-			<th colspan="4"><?php echo PROD_HEADER; ?>:</th>
+			<th colspan="4"><?php echo PRODUCTION; ?>:</th>
 	</tr></thead><tbody>	
 	<tr>
 		<td class="ico"><img class="r1" src="img/x.gif" alt="<?php echo LUMBER; ?>" title="<?php echo LUMBER; ?>" /></td>