diff --git a/client/src/app/videos/+video-watch/comment/video-comment-add.component.html b/client/src/app/videos/+video-watch/comment/video-comment-add.component.html
index eaf068cfa..8ea7f04ed 100644
--- a/client/src/app/videos/+video-watch/comment/video-comment-add.component.html
+++ b/client/src/app/videos/+video-watch/comment/video-comment-add.component.html
@@ -14,7 +14,7 @@
   </div>
 
   <div class="submit-comment">
-    <button *ngIf="isAddButtonDisplayed()" [ngClass]="{ disabled: !form.valid }" i18n>
+    <button *ngIf="isAddButtonDisplayed()" [ngClass]="{ disabled: !form.valid || addingComment }" i18n>
       Post comment
     </button>
   </div>