diff --git a/modules/member/member.controller.php b/modules/member/member.controller.php
index 84fdaacb8..6b664a695 100644
--- a/modules/member/member.controller.php
+++ b/modules/member/member.controller.php
@@ -591,7 +591,7 @@
             if(!Context::get('is_logged')) return $this->stop('msg_not_logged');
 
             // 필수 정보들을 미리 추출
-            $args = Context::gets('nick_name','homepage','blog','birthday','email_address','allow_mailing','allow_message');
+            $args = Context::gets('user_name','nick_name','homepage','blog','birthday','email_address','allow_mailing','allow_message');
 
             // 로그인 정보
             $logged_info = Context::get('logged_info');
diff --git a/modules/member/skins/cozy_simple/filter/modify_info.xml b/modules/member/skins/cozy_simple/filter/modify_info.xml
index 98b7a4c16..3a40aab79 100644
--- a/modules/member/skins/cozy_simple/filter/modify_info.xml
+++ b/modules/member/skins/cozy_simple/filter/modify_info.xml
@@ -1,10 +1,12 @@
 <filter name="modify_info" module="member" act="procMemberModifyInfo" extend_filter="member.getJoinFormList" confirm_msg_code="confirm_submit">
     <form>
+        <node target="user_name" required="true" minlength="2" maxlength="20"/>
         <node target="nick_name" required="true" minlength="2" maxlength="20"/>
         <node target="email_address" required="true" minlength="1" maxlength="200" filter="email"/>
     </form>
     <parameter>
         <param name="accept_agreement" target="accept_agreement" />
+        <param name="user_name" target="user_name" />
         <param name="nick_name" target="nick_name" />
         <param name="homepage" target="homepage" />
         <param name="blog" target="blog" />
diff --git a/modules/member/skins/cozy_simple/modify_info.html b/modules/member/skins/cozy_simple/modify_info.html
index 10c500881..504d25381 100644
--- a/modules/member/skins/cozy_simple/modify_info.html
+++ b/modules/member/skins/cozy_simple/modify_info.html
@@ -29,7 +29,7 @@
     </tr>
     <tr>
         <th scope="row">{$lang->user_name}</th>
-        <td>{htmlspecialchars($member_info->user_name)}</td>
+        <td><input type="text" name="user_name" value="{htmlspecialchars($member_info->user_name)}" /> <p>{$lang->about_user_name}</p></td>
     </tr>
     <tr>
         <th scope="row">{$lang->nick_name} *</th>
diff --git a/modules/member/skins/default/filter/modify_info.xml b/modules/member/skins/default/filter/modify_info.xml
index 98b7a4c16..3a40aab79 100644
--- a/modules/member/skins/default/filter/modify_info.xml
+++ b/modules/member/skins/default/filter/modify_info.xml
@@ -1,10 +1,12 @@
 <filter name="modify_info" module="member" act="procMemberModifyInfo" extend_filter="member.getJoinFormList" confirm_msg_code="confirm_submit">
     <form>
+        <node target="user_name" required="true" minlength="2" maxlength="20"/>
         <node target="nick_name" required="true" minlength="2" maxlength="20"/>
         <node target="email_address" required="true" minlength="1" maxlength="200" filter="email"/>
     </form>
     <parameter>
         <param name="accept_agreement" target="accept_agreement" />
+        <param name="user_name" target="user_name" />
         <param name="nick_name" target="nick_name" />
         <param name="homepage" target="homepage" />
         <param name="blog" target="blog" />
diff --git a/modules/member/skins/default/modify_info.html b/modules/member/skins/default/modify_info.html
index e6a126741..695927aa0 100644
--- a/modules/member/skins/default/modify_info.html
+++ b/modules/member/skins/default/modify_info.html
@@ -29,7 +29,7 @@
     </tr>
     <tr>
         <th scope="row">{$lang->user_name}</th>
-        <td>{htmlspecialchars($member_info->user_name)}</td>
+        <td><input type="text" name="user_name" value="{htmlspecialchars($member_info->user_name)}" /> <p>{$lang->about_user_name}</p></td>
     </tr>
     <tr>
         <th scope="row">{$lang->nick_name} *</th>