diff --git a/src/main/webapp/WEB-INF/jsp/admin/dashBoard.jsp b/src/main/webapp/WEB-INF/jsp/admin/dashBoard.jsp
index 5ca3a27..7aa4340 100644
--- a/src/main/webapp/WEB-INF/jsp/admin/dashBoard.jsp
+++ b/src/main/webapp/WEB-INF/jsp/admin/dashBoard.jsp
@@ -100,7 +100,7 @@
     <div class="col-lg-9">
       <div class="card my-2">
         <div class="card-body">
-          <p class="mb-0 text-black-50">일별 지도사용 추이</p>
+          <p class="mb-0 text-black-50">지도사용 이력 추이</p>
           <div id="mapUseFromDayChart"></div>
         </div>
       </div>
diff --git a/src/main/webapp/js/admin/dashBoard.js b/src/main/webapp/js/admin/dashBoard.js
index acfbf05..c1d9cae 100644
--- a/src/main/webapp/js/admin/dashBoard.js
+++ b/src/main/webapp/js/admin/dashBoard.js
@@ -21,6 +21,7 @@ function drawMapUseFromDayChart() {
     dataType:"json",
     success : function(data, textStatus, jqXHR) {
       console.log(data);
+      // ajax 반환 데이터가 {empty: false}로 나온다. 이유를 모르겠다.
       var dataHeader = [['날짜', '사용량']];
       var chartData = google.visualization.arrayToDataTable(dataHeader.concat(data));
       var options = {