diff --git a/src/app/item-page/simple/related-entities/tabbed-related-entities-search/tabbed-related-entities-search.component.html b/src/app/item-page/simple/related-entities/tabbed-related-entities-search/tabbed-related-entities-search.component.html
index 1b6cc273df..3ce96b2ce3 100644
--- a/src/app/item-page/simple/related-entities/tabbed-related-entities-search/tabbed-related-entities-search.component.html
+++ b/src/app/item-page/simple/related-entities/tabbed-related-entities-search/tabbed-related-entities-search.component.html
@@ -1,7 +1,9 @@
 <ng-container *ngIf="relationTypes.length > 1">
-  <ul ngbNav #tabs="ngbNav" [destroyOnHide]="true" [activeId]="activeTab$ | async" (navChange)="onTabChange($event)" class="nav-tabs">
-    <li *ngFor="let relationType of relationTypes" [ngbNavItem]="relationType.filter" rel="presentation">
-      <a ngbNavLink>{{'item.page.relationships.' + relationType.label | translate}}</a>
+  <ul ngbNav #tabs="ngbNav" [destroyOnHide]="true" [activeId]="activeTab$ | async" (navChange)="onTabChange($event)" class="nav-tabs" role="tablist">
+    <li *ngFor="let relationType of relationTypes" [ngbNavItem]="relationType.filter" role="presentation">
+      <a ngbNavLink role="tab">
+        {{'item.page.relationships.' + relationType.label | translate}}
+      </a>
       <ng-template ngbNavContent>
         <div class="mt-4">
           <ds-related-entities-search [item]="item"
diff --git a/src/app/navbar/expandable-navbar-section/expandable-navbar-section.component.html b/src/app/navbar/expandable-navbar-section/expandable-navbar-section.component.html
index 00752e7c04..7f9b4a546f 100644
--- a/src/app/navbar/expandable-navbar-section/expandable-navbar-section.component.html
+++ b/src/app/navbar/expandable-navbar-section/expandable-navbar-section.component.html
@@ -15,8 +15,7 @@
        [attr.aria-expanded]="isActive"
        [attr.aria-controls]="expandableNavbarSectionId(section.id)"
        class="d-flex flex-row flex-nowrap align-items-center gapx-1 ds-menu-toggler-wrapper"
-       [class.disabled]="section.model?.disabled"
-       id="browseDropdown">
+       [class.disabled]="section.model?.disabled">
       <span class="flex-fill">
         <ng-container
           *ngComponentOutlet="(sectionMap$ | async).get(section.id).component; injector: (sectionMap$ | async).get(section.id).injector;"></ng-container>
diff --git a/src/app/shared/form/vocabulary-treeview/vocabulary-treeview.component.html b/src/app/shared/form/vocabulary-treeview/vocabulary-treeview.component.html
index d06bbe7ad7..758d1426e0 100644
--- a/src/app/shared/form/vocabulary-treeview/vocabulary-treeview.component.html
+++ b/src/app/shared/form/vocabulary-treeview/vocabulary-treeview.component.html
@@ -3,6 +3,7 @@
   <div class="col-12">
     <div class="input-group">
       <input type="text" class="form-control" [(ngModel)]="searchText" (keyup.enter)="search()"
+             [attr.aria-label]="'vocabulary-treeview.search.form.search-placeholder' | translate"
              [placeholder]="'vocabulary-treeview.search.form.search-placeholder' | translate">
       <div class="input-group-append" id="button-addon4">
         <button class="btn btn-outline-primary" type="button" (click)="search()" [disabled]="!isSearchEnabled()">