diff --git a/app/components/dossiers/batch_select_more_component/batch_select_more_component.html.haml b/app/components/dossiers/batch_select_more_component/batch_select_more_component.html.haml
index 5b049f3b1..69f772299 100644
--- a/app/components/dossiers/batch_select_more_component/batch_select_more_component.html.haml
+++ b/app/components/dossiers/batch_select_more_component/batch_select_more_component.html.haml
@@ -3,13 +3,13 @@
     #not_selected
       %p{ role: "status" }
         = t('.pagination_files_selected_html')
-        %button.fr-btn.fr-btn--sm.fr-btn--tertiary-no-outline{ data: not_selected_button_data }
+        %button#js_select_more.fr-btn.fr-btn--sm.fr-btn--tertiary-no-outline{ data: not_selected_button_data }
           = not_selected_text
 
     #selected.hidden
       %p{ role: "status" }
         = selected_text
-        %button.fr-btn.fr-btn--sm.fr-btn--tertiary-no-outline{ data: selected_button_data }
+        %button#js_delete_selection.fr-btn.fr-btn--sm.fr-btn--tertiary-no-outline{ data: selected_button_data }
           = t(".delete_selection")
 
       = hidden_field_tag :"batch_operation[dossier_ids][]", "", form: dom_id(BatchOperation.new), id: dom_id(BatchOperation.new, "input_multiple_ids")
diff --git a/app/javascript/controllers/batch_operation_controller.ts b/app/javascript/controllers/batch_operation_controller.ts
index f4bc480b9..abc294b9c 100644
--- a/app/javascript/controllers/batch_operation_controller.ts
+++ b/app/javascript/controllers/batch_operation_controller.ts
@@ -24,6 +24,12 @@ export class BatchOperationController extends ApplicationController {
     if (pagination) {
       displayNotice(this.inputTargets);
     }
+
+    // add focus on button for a11y
+    const button = document.getElementById('js_select_more');
+    if (button) {
+      button.focus();
+    }
   }
 
   onSelectMore(event: {
@@ -44,6 +50,12 @@ export class BatchOperationController extends ApplicationController {
 
     hide(document.querySelector('#not_selected'));
     show(document.querySelector('#selected'));
+
+    // add focus on button for a11y
+    const button = document.getElementById('js_delete_selection');
+    if (button) {
+      button.focus();
+    }
   }
 
   onDeleteSelection(event: { preventDefault: () => void }) {