diff --git a/footer.php b/footer.php
index a1a872e8..fd0e3b9e 100644
--- a/footer.php
+++ b/footer.php
@@ -28,6 +28,7 @@
 <!-- AdminLTE App -->
 <script src="dist/js/adminlte.min.js"></script>
 <script src="js/app.js"></script>
+<script src="js/confirm_modal.js"></script>
 </body>
 </html>
 
diff --git a/js/app.js b/js/app.js
index 1d55abf3..1fdea279 100644
--- a/js/app.js
+++ b/js/app.js
@@ -105,20 +105,3 @@ clipboard.on('error', function(e) {
 $(function () {
   $('[data-toggle="popover"]').popover()
 });
-
-$(document).ready(function() {
-  $("a.confirm-link").click(function(e) {
-      e.preventDefault();
-
-      // Save the link reference to use after confirmation
-      var linkReference = this;
-
-      // Show the confirmation modal
-      $("#confirmationModal").modal('show');
-
-      // When the submission is confirmed via the modal
-      $("#confirmSubmitBtn").off('click').on('click', function() {
-          window.location.href = $(linkReference).attr('href');
-      });
-  });
-});
diff --git a/js/confirm_modal.js b/js/confirm_modal.js
new file mode 100644
index 00000000..3055ef04
--- /dev/null
+++ b/js/confirm_modal.js
@@ -0,0 +1,16 @@
+$(document).ready(function() {
+  $("a.confirm-link").click(function(e) {
+      e.preventDefault();
+
+      // Save the link reference to use after confirmation
+      var linkReference = this;
+
+      // Show the confirmation modal
+      $("#confirmationModal").modal('show');
+
+      // When the submission is confirmed via the modal
+      $("#confirmSubmitBtn").off('click').on('click', function() {
+          window.location.href = $(linkReference).attr('href');
+      });
+  });
+});
\ No newline at end of file
diff --git a/portal/portal_footer.php b/portal/portal_footer.php
index f8f579dd..692d6cdb 100644
--- a/portal/portal_footer.php
+++ b/portal/portal_footer.php
@@ -13,6 +13,8 @@
 
 <p class="text-center"><?php echo nullable_htmlentities($session_company_name); ?></p>
 
+<?php require_once "../inc_confirm_modal.php"; ?>
+
 <!-- jQuery -->
 <script src="../plugins/jquery/jquery.min.js"></script>
 
@@ -52,4 +54,6 @@
         plugins: 'link image lists table code codesample fullscreen autoresize',
     });
 
-</script>
\ No newline at end of file
+</script>
+
+<script src="../js/confirm_modal.js"></script>
\ No newline at end of file
diff --git a/portal/ticket.php b/portal/ticket.php
index 5b505dde..bfc9fa40 100644
--- a/portal/ticket.php
+++ b/portal/ticket.php
@@ -53,7 +53,7 @@ if (isset($_GET['id']) && intval($_GET['id'])) {
                     Ticket <?php echo $ticket_prefix, $ticket_number ?>
                     <?php
                     if ($ticket_status !== "Closed") { ?>
-                        <a href="portal_post.php?close_ticket=<?php echo $ticket_id; ?>" class="btn btn-sm btn-outline-success float-right text-white"><i class="fas fa-fw fa-check text-success"></i> Close ticket</a>
+                        <a href="portal_post.php?close_ticket=<?php echo $ticket_id; ?>" class="btn btn-sm btn-outline-success float-right text-white confirm-link"><i class="fas fa-fw fa-check text-success"></i> Close ticket</a>
                     <?php } ?>
                 </h4>
             </div>