diff --git a/lib/tasks/assets.rake b/lib/tasks/assets.rake
index 73a154dde..02cfc0d55 100644
--- a/lib/tasks/assets.rake
+++ b/lib/tasks/assets.rake
@@ -1,14 +1,21 @@
-# Adapted from https://github.com/heroku/heroku-buildpack-ruby/issues/792
 namespace :assets do
+  # Adapted from https://github.com/heroku/heroku-buildpack-ruby/issues/792
   desc "Remove 'node_modules' folder"
   task rm_node_modules: :environment do
     Rails.logger.info "Removing node_modules folder"
     FileUtils.remove_dir("node_modules", true)
   end
+
+  # Adapted from https://github.com/sass/sassc-ruby/issues/200
+  desc "Removes extra .o files from native extension builds"
+  task clean_gem_artifacts: :environment do
+    Bundler.bundle_path.glob("**/ext/**/*.o").each(&:delete)
+  end
 end
 
 unless ENV["WEBPACKER_PRECOMPILE"] == "false"
   Rake::Task["assets:clean"].enhance do
     Rake::Task["assets:rm_node_modules"].invoke
+    Rake::Task["assets:clean_gem_artifacts"].invoke
   end
 end