diff --git a/clouddriver-ecs/src/main/java/com/netflix/spinnaker/clouddriver/ecs/provider/agent/ApplicationCachingAgent.java b/clouddriver-ecs/src/main/java/com/netflix/spinnaker/clouddriver/ecs/provider/agent/ApplicationCachingAgent.java
index c49839c3e07..bec165b8379 100644
--- a/clouddriver-ecs/src/main/java/com/netflix/spinnaker/clouddriver/ecs/provider/agent/ApplicationCachingAgent.java
+++ b/clouddriver-ecs/src/main/java/com/netflix/spinnaker/clouddriver/ecs/provider/agent/ApplicationCachingAgent.java
@@ -83,7 +83,7 @@ protected List<Application> getItems(AmazonECS ecs, ProviderCache providerCache)
     Map<String, Map<String, Collection<String>>> appRelationships = new HashMap<>();
 
     for (Service service : services) {
-      String applicationKey = service.getApplicationName();
+      String applicationKey = service.getMoniker().getApp();
       String serviceKey =
           Keys.getServiceKey(service.getAccount(), service.getRegion(), service.getServiceName());