diff --git a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
index ba979aa..141f8ad 100644
--- a/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
+++ b/frontend/src/app/ntt-gantt/ntt-gantt.component.ts
@@ -1178,7 +1178,7 @@ export class NttGanttComponent implements OnInit {
             colName = 'ApprovalStatus';
             break;
           case 'plantime':
-            colName = 'plantime';
+            colName = 'Plantime';
             break;
           case 'StartDate':
             colName = 'D2';