diff --git a/app/models/host.rb b/app/models/host.rb
index b0c64239565..11c1a28a06d 100644
--- a/app/models/host.rb
+++ b/app/models/host.rb
@@ -91,7 +91,7 @@ class Host < ApplicationRecord
                             :inverse_of => :host
   has_many                  :host_aggregate_hosts, :dependent => :destroy
   has_many                  :host_aggregates, :through => :host_aggregate_hosts
-  has_one                   :conversion_host, :as => :resource, :dependent => :destroy
+  has_one                   :conversion_host, :as => :resource, :dependent => :destroy, :inverse_of => :resource
 
   # Physical server reference
   belongs_to :physical_server, :inverse_of => :host
diff --git a/app/models/vm_or_template.rb b/app/models/vm_or_template.rb
index 4b78056a733..0eab2bbb92f 100644
--- a/app/models/vm_or_template.rb
+++ b/app/models/vm_or_template.rb
@@ -82,7 +82,7 @@ class VmOrTemplate < ApplicationRecord
   has_many                  :guest_applications, :dependent => :destroy
   has_many                  :patches, :dependent => :destroy
 
-  has_one                   :conversion_host, :as => :resource, :dependent => :destroy
+  has_one                   :conversion_host, :as => :resource, :dependent => :destroy, :inverse_of => :resource
 
   belongs_to                :resource_group