diff --git a/dmp-backend/web/src/main/java/eu/eudat/models/data/funder/Funder.java b/dmp-backend/web/src/main/java/eu/eudat/models/data/funder/Funder.java
index 4acf15619..d42444e6c 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/models/data/funder/Funder.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/models/data/funder/Funder.java
@@ -100,7 +100,7 @@ public class Funder implements DataModel<eu.eudat.data.entities.Funder, Funder>
 		entity.setId(this.id);
 		entity.setLabel(this.label);
 		entity.setType(this.type);
-		entity.setReference(this.reference == null ? "dmp:" + this.label : this.reference);
+		entity.setReference(this.reference == null ? "dmp:" + this.label : this.source + ":" + this.reference);
 		entity.setDefinition(this.definition);
 		entity.setCreated(this.created == null ? new Date() : this.created);
 		entity.setStatus(this.status != null ? this.getStatus() : eu.eudat.data.entities.Grant.Status.ACTIVE.getValue());
diff --git a/dmp-backend/web/src/main/java/eu/eudat/models/data/grant/Grant.java b/dmp-backend/web/src/main/java/eu/eudat/models/data/grant/Grant.java
index 2cb1d6b0c..884a84e31 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/models/data/grant/Grant.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/models/data/grant/Grant.java
@@ -189,7 +189,7 @@ public class Grant implements DataModel<eu.eudat.data.entities.Grant, Grant> {
         entity.setAbbreviation(this.abbreviation);
         entity.setLabel(this.label);
         entity.setType(this.type);
-        entity.setReference(this.reference == null ? "dmp:" + this.label : this.reference);
+        entity.setReference(this.reference == null ? "dmp:" + this.label : this.source + ":" + this.reference);
         entity.setUri(this.uri);
         entity.setDefinition(this.definition);
         entity.setStartdate(this.startDate);
diff --git a/dmp-backend/web/src/main/java/eu/eudat/models/data/project/Project.java b/dmp-backend/web/src/main/java/eu/eudat/models/data/project/Project.java
index 098f27875..9f799c96b 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/models/data/project/Project.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/models/data/project/Project.java
@@ -176,7 +176,7 @@ public class Project implements DataModel<eu.eudat.data.entities.Project, Projec
 		entity.setAbbreviation(this.abbreviation);
 		entity.setLabel(this.label);
 		entity.setType(this.type);
-		entity.setReference(this.reference == null ? "dmp:" + this.label : this.reference);
+		entity.setReference(this.reference == null ? "dmp:" + this.label : this.source + ":" + this.reference);
 		entity.setUri(this.uri);
 		entity.setDefinition(this.definition);
 		entity.setStartdate(this.startDate);