diff --git a/src/accounting/templates/accounting/transaction/include/summary-helper-modal.html b/src/accounting/templates/accounting/transaction/include/summary-helper-modal.html
index 15b7a73..544c0c9 100644
--- a/src/accounting/templates/accounting/transaction/include/summary-helper-modal.html
+++ b/src/accounting/templates/accounting/transaction/include/summary-helper-modal.html
@@ -100,8 +100,8 @@ First written: 2023/2/28
                 <div id="accounting-summary-helper-{{ summary_helper.type }}-travel-from-error" class="invalid-feedback"></div>
               </div>
               <div class="btn-group-vertical ms-1 me-1">
-                <button class="btn btn-primary accounting-summary-helper-{{ summary_helper.type }}-travel-direction accounting-default" type="button" data-arrow="&rarr;">&rarr;</button>
-                <button class="btn btn-outline-primary accounting-summary-helper-{{ summary_helper.type }}-travel-direction" type="button" data-arrow="&harr;">&harr;</button>
+                <button class="btn btn-primary accounting-summary-helper-{{ summary_helper.type }}-travel-direction accounting-default" type="button" tabindex="-1" data-arrow="&rarr;">&rarr;</button>
+                <button class="btn btn-outline-primary accounting-summary-helper-{{ summary_helper.type }}-travel-direction" type="button" tabindex="-1" data-arrow="&harr;">&harr;</button>
               </div>
               <div class="form-floating">
                 <input id="accounting-summary-helper-{{ summary_helper.type }}-travel-to" class="form-control accounting-summary-helper-{{ summary_helper.type }}-input" type="text" value="" placeholder=" ">