diff --git a/src/main/java/eu/dnetlib/validator2/validation/guideline/openaire/FAIR_Literature_GuidelinesV4Profile.java b/src/main/java/eu/dnetlib/validator2/validation/guideline/openaire/FAIR_Literature_GuidelinesV4Profile.java
index 0e0dae7..f244193 100644
--- a/src/main/java/eu/dnetlib/validator2/validation/guideline/openaire/FAIR_Literature_GuidelinesV4Profile.java
+++ b/src/main/java/eu/dnetlib/validator2/validation/guideline/openaire/FAIR_Literature_GuidelinesV4Profile.java
@@ -142,7 +142,7 @@ public final class FAIR_Literature_GuidelinesV4Profile extends AbstractOpenAireP
 
     //    persistent identifier
     private static final ElementSpec F1_02D_SPEC = Builders.
-            forMandatoryElement("identifier", ONE).
+            forMandatoryElement("datacite:identifier", ONE).
             withMandatoryAttribute("identifierType", IDENTIFIER_TYPES).
             build();