diff --git a/add_certificate_modal.php b/add_certificate_modal.php
index ba5422c2..5acf6ba8 100644
--- a/add_certificate_modal.php
+++ b/add_certificate_modal.php
@@ -70,7 +70,7 @@
                             <div class="input-group-prepend">
                                 <span class="input-group-text"><i class="fa fa-fw fa-globe"></i></span>
                             </div>
-                            <select class="form-control select2" name="domain_id" required>
+                            <select class="form-control select2" name="domain_id">
                                 <option value="">- Domain -</option>
                                 <?php
                                 $domains_sql = mysqli_query($mysqli, "SELECT * FROM domains WHERE domain_client_id = '$client_id'");
diff --git a/edit_certificate_modal.php b/edit_certificate_modal.php
index 55a34728..20e80037 100644
--- a/edit_certificate_modal.php
+++ b/edit_certificate_modal.php
@@ -70,7 +70,7 @@
                             <div class="input-group-prepend">
                                 <span class="input-group-text"><i class="fa fa-fw fa-globe"></i></span>
                             </div>
-                            <select class="form-control select2" name="domain_id" required>
+                            <select class="form-control select2" name="domain_id">
                                 <option value="">- Domain -</option>
                                 <?php
                                 $domains_sql = mysqli_query($mysqli, "SELECT * FROM domains WHERE domain_client_id = '$client_id'");