diff --git a/cara/apps/templates/base/calculator.form.html.j2 b/cara/apps/templates/base/calculator.form.html.j2
index b6da060a..0a6a66fe 100644
--- a/cara/apps/templates/base/calculator.form.html.j2
+++ b/cara/apps/templates/base/calculator.form.html.j2
@@ -387,9 +387,9 @@
         <div class="modal-content">
           <div class="modal-header">
             <h5 class="modal-title" id="short_range_dialogTitle">Short range interactions</h5>
-            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
+            {# <button type="button" class="close" data-dismiss="modal" aria-label="Close">
               <span aria-hidden="true">&times;</span>
-            </button>
+            </button> #}
           </div>
           <div class="modal-body">
             <div class="col-md-12 p-0 form-group" id="dialog_sr">