diff --git a/lib/common.lib.php b/lib/common.lib.php
index b5bc48bfc..f18bd6476 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -987,6 +987,9 @@ function get_sideview($mb_id, $name='', $email='', $homepage='')
 
         $title_mb_id = '['.$mb_id.']';
     } else {
+        if(!$bo_table)
+            return $name;
+
         $tmp_name = "<a href=\"".G4_BBS_URL."/board.php?bo_table=".$bo_table."&amp;sca=".$sca."&amp;sfl=wr_name,1&stx=".$name."\" title=\"$name 이름으로 검색\"class=\"sv_guest\" onclick=\"return false;\">$name</a>";
         $title_mb_id = '[비회원]';
     }