diff --git a/bbs/write_update.php b/bbs/write_update.php
index 109ae17c3..0bf65612e 100644
--- a/bbs/write_update.php
+++ b/bbs/write_update.php
@@ -7,6 +7,17 @@ $g5['title'] = '게시글 저장';
 
 $msg = array();
 
+if($board['bo_use_category']) {
+    $ca_name = trim($_POST['ca_name']);
+    if(!$ca_name) {
+        $msg[] = '<strong>분류</strong>를 선택하세요.';
+    } else {
+        $categories = array_map('trim', explode("|", $board['bo_category_list'].($is_admin ? '|공지' : '')));
+        if(!empty($categories) && !in_array($ca_name, $categories))
+            $msg[] = '분류를 올바르게 입력하세요.';
+    }
+}
+
 $wr_subject = '';
 if (isset($_POST['wr_subject'])) {
     $wr_subject = substr(trim($_POST['wr_subject']),0,255);
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 80d90b64a..ac05a97f6 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -796,7 +796,7 @@ function get_category_option($bo_table='', $ca_name='')
 {
     global $g5, $board, $is_admin;
 
-    $categories = explode("|", $board['bo_category_list'].($is_admin?"|공지":"")); // 구분자가 , 로 되어 있음
+    $categories = explode("|", $board['bo_category_list'].($is_admin?"|공지":"")); // 구분자가 | 로 되어 있음
     $str = "";
     for ($i=0; $i<count($categories); $i++) {
         $category = trim($categories[$i]);