diff --git a/modules/ncenterlite/lang/en.php b/modules/ncenterlite/lang/en.php
index 658823b8d..5abb8470b 100644
--- a/modules/ncenterlite/lang/en.php
+++ b/modules/ncenterlite/lang/en.php
@@ -38,6 +38,8 @@ $lang->ncenterlite_test_noti = 'Hello, <strong>%s</strong>! This is a test notif
 $lang->ncenterlite_vote = '<strong>%1$s</strong> upvoted your %3$s, "%2$s".';
 $lang->ncenterlite_admin_content_message = '<strong>%1$s</strong> wrote "%3$s" on <strong>%2$s</strong>.';
 $lang->ncenterlite_insert_member_message = '<strong>%s!</strong> Welcome to the <strong>membership!!</strong>';
+$lang->ncenterlite_content_image = '(Image)';
+$lang->ncenterlite_content_empty = '(No Content)';
 $lang->ncenterlite_ago = 'ago';
 $lang->ncenterlite_date['0'] = 'year';
 $lang->ncenterlite_date['1'] = 'month';
diff --git a/modules/ncenterlite/lang/ko.php b/modules/ncenterlite/lang/ko.php
index 40830be52..9651e439e 100644
--- a/modules/ncenterlite/lang/ko.php
+++ b/modules/ncenterlite/lang/ko.php
@@ -48,6 +48,8 @@ $lang->ncenterlite_test_noti = '<strong>%s</strong>님! 테스트 알림입니
 $lang->ncenterlite_vote = '<strong>%s</strong>님이 회원님의 <strong>"%s"</strong> %s을 추천하였습니다.';
 $lang->ncenterlite_admin_content_message = '<strong>%1$s</strong>님이 <strong>"%2$s"</strong> 게시판에 <strong>"%3$s"</strong>라고 글을 남겼습니다.';
 $lang->ncenterlite_insert_member_message = '<strong>%s</strong>님 <strong>회원가입</strong>을 환영합니다!!';
+$lang->ncenterlite_content_image = '(이미지)';
+$lang->ncenterlite_content_empty = '(내용 없음)';
 $lang->ncenterlite_ago = '전';
 $lang->ncenterlite_date['0'] = '년';
 $lang->ncenterlite_date['1'] = '개월';
diff --git a/modules/ncenterlite/ncenterlite.controller.php b/modules/ncenterlite/ncenterlite.controller.php
index 6ac351ce1..591f8dedf 100644
--- a/modules/ncenterlite/ncenterlite.controller.php
+++ b/modules/ncenterlite/ncenterlite.controller.php
@@ -211,7 +211,7 @@ class ncenterliteController extends ncenterlite
 				$args->type = $this->_TYPE_COMMENT;
 				$args->target_type = $this->_TYPE_ADMIN_COMMENT;
 				$args->target_url = getNotEncodedFullUrl('', 'document_srl', $document_srl, '_comment_srl', $comment_srl) . '#comment_' . $comment_srl;
-				$args->target_summary = cut_str(strip_tags($content), 50);
+				$args->target_summary = cut_str(trim(utf8_normalize_spaces(strip_tags($content))), 50) ?: (strpos($content, '<img') !== false ? lang('ncenterlite_content_image') : lang('ncenterlite_content_empty'));
 				$args->target_nick_name = $obj->nick_name;
 				$args->target_email_address = $obj->email_address;
 				$args->regdate = date('YmdHis');
@@ -254,7 +254,7 @@ class ncenterliteController extends ncenterlite
 				$args->type = $this->_TYPE_COMMENT;
 				$args->target_type = $this->_TYPE_MENTION;
 				$args->target_url = getNotEncodedFullUrl('', 'document_srl', $document_srl, '_comment_srl', $comment_srl) . '#comment_' . $comment_srl;
-				$args->target_summary = cut_str(strip_tags($content), 50);
+				$args->target_summary = cut_str(trim(utf8_normalize_spaces(strip_tags($content))), 50) ?: (strpos($content, '<img') !== false ? lang('ncenterlite_content_image') : lang('ncenterlite_content_empty'));
 				$args->target_nick_name = $obj->nick_name;
 				$args->target_email_address = $obj->email_address;
 				$args->regdate = date('YmdHis');
@@ -295,7 +295,7 @@ class ncenterliteController extends ncenterlite
 				$args->type = $this->_TYPE_COMMENT;
 				$args->target_type = $this->_TYPE_COMMENT;
 				$args->target_url = getNotEncodedFullUrl('', 'document_srl', $document_srl, '_comment_srl', $comment_srl) . '#comment_' . $comment_srl;
-				$args->target_summary = cut_str(strip_tags($content), 50);
+				$args->target_summary = cut_str(trim(utf8_normalize_spaces(strip_tags($content))), 50) ?: (strpos($content, '<img') !== false ? lang('ncenterlite_content_image') : lang('ncenterlite_content_empty'));
 				$args->target_nick_name = $obj->nick_name;
 				$args->target_email_address = $obj->email_address;
 				$args->regdate = $regdate;
@@ -332,7 +332,7 @@ class ncenterliteController extends ncenterlite
 				$args->type = $this->_TYPE_DOCUMENT;
 				$args->target_type = $this->_TYPE_COMMENT;
 				$args->target_url = getNotEncodedFullUrl('', 'document_srl', $document_srl, '_comment_srl', $comment_srl) . '#comment_' . $comment_srl;
-				$args->target_summary = cut_str(strip_tags($content), 50);
+				$args->target_summary = cut_str(trim(utf8_normalize_spaces(strip_tags($content))), 50) ?: (strpos($content, '<img') !== false ? lang('ncenterlite_content_image') : lang('ncenterlite_content_empty'));
 				$args->target_nick_name = $obj->nick_name;
 				$args->target_email_address = $obj->email_address;
 				$args->regdate = $regdate;