diff --git a/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/FachstelleCollaboration.java b/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/FachstelleCollaboration.java
index ec2175f2f8f6bcb1f0c40cbcc570aff03df2bacd..ebf3e374bbab517011f00785e95ea5750dad225e 100644
--- a/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/FachstelleCollaboration.java
+++ b/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/FachstelleCollaboration.java
@@ -1,5 +1,7 @@
 package de.ozgcloud.alfa.collaboration;
 
+import org.springframework.hateoas.server.core.Relation;
+
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
 import de.ozgcloud.alfa.common.LinkedResource;
@@ -12,6 +14,7 @@ import lombok.NoArgsConstructor;
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor
+@Relation(itemRelation = "collaboration", collectionRelation = "collaborationList")
 public class FachstelleCollaboration implements Collaboration {
 
 	@JsonIgnore
diff --git a/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/OrganisationsEinheitCollaboration.java b/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/OrganisationsEinheitCollaboration.java
index 4930840df4c9fa8028cc78fec993871600f557e9..9564d5d293a6b84889d7ec7b04c0db45a3663424 100644
--- a/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/OrganisationsEinheitCollaboration.java
+++ b/alfa-service/src/main/java/de/ozgcloud/alfa/collaboration/OrganisationsEinheitCollaboration.java
@@ -1,5 +1,7 @@
 package de.ozgcloud.alfa.collaboration;
 
+import org.springframework.hateoas.server.core.Relation;
+
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
 import de.ozgcloud.alfa.common.LinkedResource;
@@ -12,6 +14,7 @@ import lombok.NoArgsConstructor;
 @Builder
 @AllArgsConstructor
 @NoArgsConstructor
+@Relation(itemRelation = "collaboration", collectionRelation = "collaborationList")
 public class OrganisationsEinheitCollaboration implements Collaboration {
 
 	@JsonIgnore