diff --git a/src/app/webide/webide.component.html b/src/app/webide/webide.component.html
index 69547d9..48437f8 100644
--- a/src/app/webide/webide.component.html
+++ b/src/app/webide/webide.component.html
@@ -7,7 +7,9 @@
             [class.disabled]="filename === file"
             [disabled]="filename === file"
             [class.tao-tab-btn-saved]="filename === file && codeState === 'SAVED'">
-      {{file}}
+      <span *ngIf="filename !== file">{{file}}</span>
+      <span *ngIf="filename === file"
+            [class.underline]="codeState === 'DIRTY'">{{file}}</span>
     </button>
   </div>