diff --git a/app/models/concerns/protected_ref.rb b/app/models/concerns/protected_ref.rb
index a87eadb93321d371ddc0a8154462cb5f959ccec3..5bb9dcd1f55ce543a4059530dfc27b9c3ade241d 100644
--- a/app/models/concerns/protected_ref.rb
+++ b/app/models/concerns/protected_ref.rb
@@ -37,7 +37,7 @@ def protected_ref_access_levels(*types)
             is: 1,
             message: "are restricted to a single instance per #{self.model_name.human}."
           },
-          unless: -> { allow_multiple?(type) }
+          unless: -> { true }
 
         accepts_nested_attributes_for :"#{type}_access_levels", allow_destroy: true
       end