diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/provision/scholix/ScholixResource.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/provision/scholix/ScholixResource.java
index 34becbb90..a08a2cd9b 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/provision/scholix/ScholixResource.java
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/provision/scholix/ScholixResource.java
@@ -34,7 +34,9 @@ public class ScholixResource implements Serializable {
 
         resource.setObjectType(summary.getTypology().toString());
 
-        resource.setTitle(summary.getTitle().stream().findAny().orElse(null));
+
+        if (summary.getTitle() != null)
+            resource.setTitle(summary.getTitle().stream().findAny().orElse(null));
 
         if (summary.getAuthor() != null)
             resource.setCreator(summary.getAuthor().stream()
@@ -53,8 +55,8 @@ public class ScholixResource implements Serializable {
             resource.setCollectedFrom(summary.getDatasources().stream()
                     .map(d ->
                             new ScholixCollectedFrom(new ScholixEntityId(d.getDatasourceName(),
-                            Collections.singletonList(new ScholixIdentifier(d.getDatasourceId(), "dnet_identifier"))
-                    ), "collected", d.getCompletionStatus()))
+                                    Collections.singletonList(new ScholixIdentifier(d.getDatasourceId(), "dnet_identifier"))
+                            ), "collected", d.getCompletionStatus()))
                     .collect(Collectors.toList()));
         return resource;
 
diff --git a/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/graph/Application/provision/oozie_app/workflow.xml b/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/graph/Application/provision/oozie_app/workflow.xml
index 300844807..8ce51069f 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/graph/Application/provision/oozie_app/workflow.xml
+++ b/dhp-workflows/dhp-graph-provision/src/main/resources/eu/dnetlib/dhp/graph/Application/provision/oozie_app/workflow.xml
@@ -27,7 +27,7 @@
 
     </parameters>
 
-    <start to="generateSummary"/>
+    <start to="generateScholix"/>
 
     <kill name="Kill">
         <message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
@@ -73,7 +73,7 @@
             <arg>--workingDirPath</arg><arg>${workingDirPath}</arg>
             <arg>--graphPath</arg><arg>${graphPath}</arg>
         </spark>
-        <ok to="generateScholix"/>
+        <ok to="indexSummary"/>
         <error to="Kill"/>
     </action>