diff --git a/HISTORY.rst b/HISTORY.rst
index 8fb14df9f..d875e47b2 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -18,6 +18,7 @@ End-User Summary
 - Added index for ``SmallVariant`` model filtering for ``case_id`` and ``set_id``.
   This may take a while!
 - Allowing project owners and delegates to import cases via API (#207).
+- Fix for broken link-out into MutationTaster (#240).
 
 Full Change List
 ================
@@ -35,6 +36,7 @@ Full Change List
 - Added index for ``SmallVariant`` model filtering for ``case_id`` and ``set_id``.
   This may take a while!
 - Allowing project owners and delegates to import cases via API (#207).
+- Fix for broken link-out into MutationTaster (#240).
 
 -------
 v0.23.9
diff --git a/varfish/static/js/filter_form.js b/varfish/static/js/filter_form.js
index a92d864db..bf33e68fe 100644
--- a/varfish/static/js/filter_form.js
+++ b/varfish/static/js/filter_form.js
@@ -117,15 +117,6 @@ $(document).ready(function() {
   $(".checkboxinput").change(updateCheckboxes);
 });
 
-function mutationTaster(chromosome, position, ref, alt) {
-    var form = $('<form target="_blank" method="POST" action="http://www.mutationtaster.org/cgi-bin/MutationTaster/MT_ChrPos.cgi">');
-    form.append($('<input type="hidden" name="chromosome" value="' + chromosome + '">'));
-    form.append($('<input type="hidden" name="position" value="' + position + '">'));
-    form.append($('<input type="hidden" name="ref" value="' + ref + '">'));
-    form.append($('<input type="hidden" name="alt" value="' + alt + '">'));
-    form.appendTo('body').submit();
-}
-
 function polyPhen2(gene, hgvsP) {
     const regex = /^p.([A-Z])(\d+)([A-Z])$/;
     const found = hgvsP.match(regex);
diff --git a/variants/templates/variants/filter_result/row.html b/variants/templates/variants/filter_result/row.html
index fdeba9f96..c68e2de8d 100644
--- a/variants/templates/variants/filter_result/row.html
+++ b/variants/templates/variants/filter_result/row.html
@@ -442,13 +442,23 @@
   {% endif %}
   <td>
     <div class="btn-group sodar-list-btn-group pr-2">
-      <a
-        href="javascript:mutationTaster('chr{{ entry.chromosome }}', {{ entry.start }}, '{{ entry.reference }}', '{{ entry.alternative }}');"
-        data-toggle="tooltip"
-        title="Open variant in MutationTaster"
-        class="btn btn-primary sodar-list-btn">
-        MT
-      </a>
+      {% if entry.release == "GRCh37" %}
+        <a
+          href="https://www.genecascade.org/MTc2021/ChrPos102.cgi?chromosome={{ entry.chromosome }}&position={{ entry.start }}&ref={{ entry.reference }}&alt={{ entry.alternative }}"
+          data-toggle="tooltip"
+          title="Open variant in MutationTaster"
+          class="btn btn-primary sodar-list-btn">
+          MT
+        </a>
+      {% else %}
+        <span
+          class="btn btn-disabled sodar-list-btn btn-outline-secondary"
+          data-toggle="tooltip"
+          title="MutationTaster not available for genome {{ entry.release }}"
+        >
+          MT
+        </span>
+      {% endif %}
       {% if ga4gh_beacon_network_widget_enabled or kiosk_mode %}
         <a
            data-toggle="popover"