diff --git a/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/subscription/r4/RestHookActivatesPreExistingSubscriptionsR4Test.java b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/subscription/r4/RestHookActivatesPreExistingSubscriptionsR4Test.java
index a59744903d7..ad9eaacd2d4 100644
--- a/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/subscription/r4/RestHookActivatesPreExistingSubscriptionsR4Test.java
+++ b/hapi-fhir-jpaserver-base/src/test/java/ca/uhn/fhir/jpa/subscription/r4/RestHookActivatesPreExistingSubscriptionsR4Test.java
@@ -105,6 +105,7 @@ public class RestHookActivatesPreExistingSubscriptionsR4Test extends BaseResourc
 		assertFalse(hasRestHookSubscriptionInterceptor());
 
 		ourRestServer.registerInterceptor(getRestHookSubscriptionInterceptor());
+		getRestHookSubscriptionInterceptor().initSubscriptions();
 
 		assertTrue(hasRestHookSubscriptionInterceptor());