diff --git a/lib/propshaft/processor.rb b/lib/propshaft/processor.rb
index 8352584..c4f8560 100644
--- a/lib/propshaft/processor.rb
+++ b/lib/propshaft/processor.rb
@@ -20,8 +20,8 @@ def clobber
     FileUtils.rm_r(output_path) if File.exist?(output_path)
   end
 
-  def clean
-    Propshaft::OutputPath.new(output_path, load_path.manifest).clean(2, 1.hour)
+  def clean(count)
+    Propshaft::OutputPath.new(output_path, load_path.manifest).clean(count, 1.hour)
   end
 
   private
diff --git a/lib/propshaft/railties/assets.rake b/lib/propshaft/railties/assets.rake
index 6af2f04..ce804b9 100644
--- a/lib/propshaft/railties/assets.rake
+++ b/lib/propshaft/railties/assets.rake
@@ -14,8 +14,9 @@ namespace :assets do
   end
 
   desc "Removes old files in config.assets.output_path"
-  task clean: :environment do
-    Rails.application.assets.processor.clean
+  task :clean, [:count] => [:environment] do |_, args|
+    count = args.fetch(:count, 2)
+    Rails.application.assets.processor.clean(count.to_i)
   end
 
   desc "Print all the assets available in config.assets.paths"