diff --git a/modules/comment/comment.controller.php b/modules/comment/comment.controller.php
index 007e5e3d8..c7eef20b8 100644
--- a/modules/comment/comment.controller.php
+++ b/modules/comment/comment.controller.php
@@ -390,7 +390,9 @@
             $args->document_srl = $document_srl;
             $comments = executeQueryArray('comment.getAllComments',$args);
             if($comments->data) {
+				$commentSrlList = array();
                 foreach($comments->data as $key => $comment) {
+					array_push($commentSrlList, $comment->comment_srl);
                     // call a trigger (before)
                     $output = ModuleHandler::triggerCall('comment.deleteComment', 'before', $comment);
                     if(!$output->toBool()) continue;
@@ -406,6 +408,15 @@
             // Delete a list of comments
             $output = executeQuery('comment.deleteCommentsList', $args);
 
+			//delete declared, declared_log
+			if(is_array($commentSrlList) && count($commentSrlList)>0)
+			{
+				unset($args);
+				$args->comment_srl = join(',', $commentSrlList);
+				$tmpOutput1 = executeQuery('comment.deleteDeclaredComments', $args);
+				$tmpOutput2 = executeQuery('comment.deleteCommentDeclaredLog', $args);
+			}
+
             return $output;
         }
 
diff --git a/modules/comment/queries/deleteCommentDeclaredLog.xml b/modules/comment/queries/deleteCommentDeclaredLog.xml
new file mode 100644
index 000000000..153caf2d4
--- /dev/null
+++ b/modules/comment/queries/deleteCommentDeclaredLog.xml
@@ -0,0 +1,8 @@
+<query id="deleteCommentDeclaredLog" action="delete">
+    <tables>
+        <table name="comment_declared_log" />
+    </tables>
+    <conditions>
+        <condition operation="in" column="comment_srl" var="comment_srl" filter="number" notnull="notnull" />
+    </conditions>
+</query>