diff --git a/USERS.md b/USERS.md
index 3cace33265d03..3f546d591f11b 100644
--- a/USERS.md
+++ b/USERS.md
@@ -187,6 +187,7 @@ Currently, the following organizations are **officially** using Argo CD:
 1. [Patreon](https://www.patreon.com/)
 1. [PayPay](https://paypay.ne.jp/)
 1. [Peloton Interactive](https://www.onepeloton.com/)
+1. [PGS](https://www.pgs.com)
 1. [Pigment](https://www.gopigment.com/)
 1. [Pipefy](https://www.pipefy.com/)
 1. [Pismo](https://pismo.io/)
diff --git a/server/application/application.go b/server/application/application.go
index 8097185a7cb33..9e3bbb6d0d1aa 100644
--- a/server/application/application.go
+++ b/server/application/application.go
@@ -1339,9 +1339,10 @@ func (s *Server) WatchResourceTree(q *application.ResourcesQuery, ws application
 		return err
 	}
 
-	return s.cache.OnAppResourcesTreeChanged(ws.Context(), q.GetApplicationName(), func() error {
+	cacheKey := argo.AppInstanceName(q.GetApplicationName(), q.GetAppNamespace(), s.ns)
+	return s.cache.OnAppResourcesTreeChanged(ws.Context(), cacheKey, func() error {
 		var tree appv1.ApplicationTree
-		err := s.cache.GetAppResourcesTree(q.GetApplicationName(), &tree)
+		err := s.cache.GetAppResourcesTree(cacheKey, &tree)
 		if err != nil {
 			return fmt.Errorf("error getting app resource tree: %w", err)
 		}