diff --git a/src/app/components/shared/comment-list/comment-list.component.html b/src/app/components/shared/comment-list/comment-list.component.html
index ec2c3b39112c2dacf243d4b1ca33d491697f065a..86f4e180cf0633c65b7113d78ee074de99613dfb 100644
--- a/src/app/components/shared/comment-list/comment-list.component.html
+++ b/src/app/components/shared/comment-list/comment-list.component.html
@@ -62,12 +62,12 @@
 
       <button mat-icon-button (focus)="hideCommentsList=true" matTooltip="{{ 'comment-list.read' | translate }}"
               (click)="filterComments(read)">
-        <mat-icon [ngClass]="{read: 'read-icon'}[currentFilter]">visibility</mat-icon>
+        <mat-icon [ngClass]="{read: 'read-icon'}[currentFilter]">speaker_notes</mat-icon>
       </button>
 
       <button mat-icon-button (focus)="hideCommentsList=true" matTooltip="{{ 'comment-list.unread' | translate }}"
               (click)="filterComments(unread)">
-        <mat-icon [ngClass]="{unread: 'unread-icon'}[currentFilter]">visibility_off</mat-icon>
+        <mat-icon [ngClass]="{unread: 'unread-icon'}[currentFilter]">speaker_notes_off</mat-icon>
       </button>
 
       <button mat-icon-button (focus)="hideCommentsList=false" (click)="sortComments(currentSort); filterComments('')">
diff --git a/src/app/components/shared/comment/comment.component.html b/src/app/components/shared/comment/comment.component.html
index 5facf0812616eae372481a690803e172a0f1ec10..c553b23cef00f8aef4b2de53c520266813b91cea 100644
--- a/src/app/components/shared/comment/comment.component.html
+++ b/src/app/components/shared/comment/comment.component.html
@@ -23,7 +23,7 @@
       </button>
       <button mat-icon-button *ngIf="!isStudent || comment.read" [disabled]="isStudent" (click)="setRead(comment)">
         <mat-icon [ngClass]="{'read-icon': comment.read, 'not-marked' : !comment.read}"
-                  matTooltip="{{ 'comment-page.mark-read' | translate }}">visibility
+                  matTooltip="{{ 'comment-page.mark-read' | translate }}">speaker_notes
         </mat-icon>
       </button>
     </div>