diff --git a/hwe/a_emperior.php b/hwe/a_emperior.php
index d7460384..da36f03e 100644
--- a/hwe/a_emperior.php
+++ b/hwe/a_emperior.php
@@ -55,7 +55,7 @@ if ($select == 0) {
             <input type=hidden name=select value='<?=$emperior['no']?>'>
             
             <?php if($emperior['server_id']): ?>
-            <a href="a_history.php?server_id=<?=$emperior['server_id']?>"><button type="button">역사 보기</button></a>
+            <a href="a_history.php?serverID=<?=$emperior['server_id']?>"><button type="button">역사 보기</button></a>
             <?php endif ?>
         </form>
         </td>
diff --git a/hwe/a_history.php b/hwe/a_history.php
index 4d1d58a7..94aef9f7 100644
--- a/hwe/a_history.php
+++ b/hwe/a_history.php
@@ -5,7 +5,7 @@ include "lib.php";
 include "func.php";
 $btn = Util::getReq('btn');
 $yearmonth = Util::getReq('yearmonth', 'int');
-$serverID = Util::getReq('server_id', 'string', null);
+$serverID = Util::getReq('serverID', 'string', null);
 
 extractMissingPostToGlobals();
 
@@ -159,7 +159,7 @@ $history = $db->queryFirstRow('SELECT log,genlog,nation,power,gen,city FROM hist
 </table>
 <script>
 reloadWorldMap({
-    targetJson:'j_map_history.php?year=<?=$year?>&month=<?=$month?>&server_id=<?=$serverID?>',
+    targetJson:'j_map_history.php?year=<?=$year?>&month=<?=$month?>&serverID=<?=$serverID?>',
     showMe:false,
     neutralView:true
 });
diff --git a/hwe/j_map_history.php b/hwe/j_map_history.php
index a9664449..a4e24461 100644
--- a/hwe/j_map_history.php
+++ b/hwe/j_map_history.php
@@ -6,7 +6,7 @@ include "func.php";
 
 $year = Util::getReq('year', 'int');
 $month = Util::getReq('month', 'int');
-$serverID = Util::getReq('server_id', 'string', null);
+$serverID = Util::getReq('serverID', 'string', null);
 
 extractMissingPostToGlobals();