diff --git a/src/design/plone/contenttypes/upgrades/configure.zcml b/src/design/plone/contenttypes/upgrades/configure.zcml
index 894614df..53231884 100644
--- a/src/design/plone/contenttypes/upgrades/configure.zcml
+++ b/src/design/plone/contenttypes/upgrades/configure.zcml
@@ -835,6 +835,7 @@
       >
     <genericsetup:upgradeStep
         title="Add collective.volto.enhancedlinks"
-        handler=".upgrades.to_7100" />
+        handler=".upgrades.to_7100"
+        />
   </genericsetup:upgradeSteps>
 </configure>