diff --git a/tools/tertiary-analysis/sc3/sc3-macros.xml b/tools/tertiary-analysis/sc3/sc3-macros.xml
index 1bde935e..86bff088 100644
--- a/tools/tertiary-analysis/sc3/sc3-macros.xml
+++ b/tools/tertiary-analysis/sc3/sc3-macros.xml
@@ -7,6 +7,11 @@
       <yield/>
     </requirements>
   </xml>
+  <xml name="xrefs">
+      <xrefs>
+          <xref type="bio.tools">sc3</xref>
+      </xrefs>
+  </xml>
   <token name="@VERSION_HISTORY@"><![CDATA[
 **Version history**