diff --git a/test/data/software/reference.xml b/test/data/software/reference.xml
index d59215e..5c7be73 100644
--- a/test/data/software/reference.xml
+++ b/test/data/software/reference.xml
@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd">
   <identifier identifierType="swMATH">2</identifier>
-  <creators>Li, X.S.,Demmel, J.W.</creators>
+  <creators>Li, X.S., Demmel, J.W.</creators>
+    <titles>
     <title>SuperLU-DIST</title>
-
+    </titles>
   <publisher>swMATH</publisher>
   <publicationYear></publicationYear>
   <subjects>