diff --git a/client_invoices.php b/client_invoices.php
index 80735175..0ebf2e8f 100644
--- a/client_invoices.php
+++ b/client_invoices.php
@@ -55,7 +55,7 @@ $num_rows = mysqli_fetch_row(mysqli_query($mysqli, "SELECT FOUND_ROWS()"));
                     <div class="col-md-8">
                         <div class="float-right">
                             <?php if($balance > 0) { ?>
-                            <button type="button" class="btn btn-secondary" data-toggle="modal" data-target="#addBulkPaymentModal"><i class="fa fa-credit-card mr-2"></i>Batch Payment</button>
+                            <button type="button" class="btn btn-default" data-toggle="modal" data-target="#addBulkPaymentModal"><i class="fa fa-credit-card mr-2"></i>Batch Payment</button>
                             <?php } ?>
                         </div>
                     </div>