diff --git a/gems/pending/util/miq-exception.rb b/gems/pending/util/miq-exception.rb
index 8fcb39a2b90..dd998918b62 100644
--- a/gems/pending/util/miq-exception.rb
+++ b/gems/pending/util/miq-exception.rb
@@ -119,6 +119,8 @@ class MiqNetworkRouterValidationError < Error; end
   class MiqNetworkRouterCreateError < Error; end
   class MiqNetworkRouterUpdateError < Error; end
   class MiqNetworkRouterDeleteError < Error; end
+  class MiqNetworkRouterAddInterfaceError < Error; end
+  class MiqNetworkRouterRemoveInterfaceError < Error; end
 
   class MiqVolumeValidationError < Error; end
   class MiqVolumeCreateError < Error; end