diff --git a/app/models/vim_performance_state.rb b/app/models/vim_performance_state.rb
index b329c64768b..49565054772 100644
--- a/app/models/vim_performance_state.rb
+++ b/app/models/vim_performance_state.rb
@@ -189,9 +189,8 @@ def capture_assoc_ids
     result = {}
     ASSOCIATIONS.each do |assoc|
       method = if assoc == :vms
-                 if resource.kind_of?(EmsCluster)
-                   :all_vms_and_templates
-                 elsif resource.kind_of?(Service)
+                 # Service uses a virtual has_many (via ancestry)
+                 if resource.kind_of?(Service)
                    :vms
                  else
                    :vms_and_templates