diff --git a/lib/rails_admin/config/model.rb b/lib/rails_admin/config/model.rb
index d1b39bad57..71b6ff220f 100644
--- a/lib/rails_admin/config/model.rb
+++ b/lib/rails_admin/config/model.rb
@@ -61,7 +61,7 @@ def object_label
       end
 
       register_instance_option :label_plural do
-        (@label_plural ||= {})[::I18n.locale] ||= abstract_model.model.model_name.human(count: Float::INFINITY, default: label.pluralize)
+        (@label_plural ||= {})[::I18n.locale] ||= abstract_model.model.model_name.human(count: Float::INFINITY, default: label.pluralize(::I18n.locale))
       end
 
       def pluralize(count)