diff --git a/tools/metabuli/metabuli.xml b/tools/metabuli/metabuli.xml
index b7ec56aad85..630733ac69a 100644
--- a/tools/metabuli/metabuli.xml
+++ b/tools/metabuli/metabuli.xml
@@ -5,6 +5,9 @@
     <macros>
         <import>macros.xml</import>
     </macros>
+    <xrefs>
+        <xref type="bio.tools">metabuli</xref>
+    </xrefs>
     <expand macro="requirements" />
     <expand macro="version_command" />