diff --git a/extensions/control-plane/api/management-api/management-api-test-fixtures/src/testFixtures/java/org/eclipse/edc/test/system/utils/Participant.java b/extensions/control-plane/api/management-api/management-api-test-fixtures/src/testFixtures/java/org/eclipse/edc/test/system/utils/Participant.java
index 6105ad72eb5..0e0b6030c94 100644
--- a/extensions/control-plane/api/management-api/management-api-test-fixtures/src/testFixtures/java/org/eclipse/edc/test/system/utils/Participant.java
+++ b/extensions/control-plane/api/management-api/management-api-test-fixtures/src/testFixtures/java/org/eclipse/edc/test/system/utils/Participant.java
@@ -639,7 +639,7 @@ public Participant build() {
         }
 
         @SuppressWarnings("unchecked")
-        private B self() {
+        protected B self() {
             return (B) this;
         }
     }