diff --git a/dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/export/ScholexplorerPatcher.java b/dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/export/ScholexplorerPatcher.java
index d9429a036..4544c7337 100644
--- a/dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/export/ScholexplorerPatcher.java
+++ b/dhp-workflows/dhp-graph-provision-scholexplorer/src/main/java/eu/dnetlib/dhp/export/ScholexplorerPatcher.java
@@ -108,6 +108,8 @@ public class ScholexplorerPatcher {
 							ModelConstants.DNET_ACCESS_MODES));
 		});
 
+		result.setPid(Lists.newArrayList());
+
 		Optional
 			.ofNullable(result.getExternalReference())
 			.orElse(Lists.newArrayList())