diff --git a/app/validators/object_count_validator.rb b/app/validators/object_count_validator.rb
index 92830b1b0..d2d880fea 100644
--- a/app/validators/object_count_validator.rb
+++ b/app/validators/object_count_validator.rb
@@ -1,7 +1,9 @@
 class ObjectCountValidator < ActiveModel::EachValidator
   def validate_each(record, attribute, value)
     min, max = options[:min].call, options[:max].call
-    return if value.count { |i| !i.marked_for_destruction? }.between?(min, max)
+    values = value.reject(&:marked_for_destruction?)
+
+    return if values.size.between?(min, max)
     association = options[:association] || attribute
     record.errors.add(association, :out_of_range, { min: min, max: max })
   end