diff --git a/bbs/delete.php b/bbs/delete.php
index 1a5af7ad7..5c6bf8aa9 100644
--- a/bbs/delete.php
+++ b/bbs/delete.php
@@ -82,7 +82,7 @@ while ($row = sql_fetch_array($result))
         while ($row2 = sql_fetch_array($result2)) {
             @unlink(G4_DATA_PATH.'/file/'.$bo_table.'/'.$row2['bf_file']);
             // 썸네일삭제
-            if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file']) {
+            if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file'])) {
                 $dir = G4_DATA_PATH.'/file/'.$bo_table;
                 if($dh = opendir($dir)) {
                     while(($file = readdir($dh)) !== false) {
diff --git a/bbs/delete_all.php b/bbs/delete_all.php
index 09a48e82f..ab19c590d 100644
--- a/bbs/delete_all.php
+++ b/bbs/delete_all.php
@@ -95,7 +95,7 @@ for ($i=count($tmp_array)-1; $i>=0; $i--)
                 @unlink(G4_DATA_PATH.'/file/'.$bo_table.'/'.$row2['bf_file']);
 
                 // 썸네일삭제
-                if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file']) {
+                if(preg_match("/\.({$config['cf_image_extension']})$/i", $row2['bf_file'])) {
                     $dir = G4_DATA_PATH.'/file/'.$bo_table;
                     if($dh = opendir($dir)) {
                         while(($file = readdir($dh)) !== false) {
diff --git a/bbs/write_update.php b/bbs/write_update.php
index 9cb96c1bd..e53169555 100644
--- a/bbs/write_update.php
+++ b/bbs/write_update.php
@@ -238,7 +238,7 @@ for ($i=0; $i<count($_FILES['bf_file']['name']); $i++) {
             $row = sql_fetch(" select bf_file from {$g4['board_file_table']} where bo_table = '$bo_table' and wr_id = '$wr_id' and bf_no = '$i' ");
             @unlink(G4_DATA_PATH.'/file/'.$bo_table.'/'.$row['bf_file']);
             // 이미지파일이면 썸네일삭제
-            if(preg_match("/\.({$config['cf_image_extension']})$/i", $row['bf_file']) {
+            if(preg_match("/\.({$config['cf_image_extension']})$/i", $row['bf_file'])) {
                 $dir = G4_DATA_PATH.'/file/'.$bo_table;
                 if($dh = opendir($dir)) {
                     while(($entry = readdir($dh)) !== false) {