diff --git a/lib/hotwire/spark/engine.rb b/lib/hotwire/spark/engine.rb
index 16548ca..f21bdda 100644
--- a/lib/hotwire/spark/engine.rb
+++ b/lib/hotwire/spark/engine.rb
@@ -21,5 +21,9 @@ class Engine < ::Rails::Engine
     initializer "hotwire_spark.install" do |application|
       Hotwire::Spark.install_into application if Hotwire::Spark.enabled?
     end
+
+    initializer "hotwire_spark.assets" do |application|
+      application.config.assets.precompile << "hotwire_spark.js"
+    end
   end
 end