diff --git a/lib/ember_cli.rb b/lib/ember_cli.rb
index 680c83249af..d9aca442156 100644
--- a/lib/ember_cli.rb
+++ b/lib/ember_cli.rb
@@ -59,6 +59,10 @@ module EmberCli
     {}
   end
 
+  def self.parse_source_map_path(file)
+    File.read("#{dist_dir}/assets/#{file}")[%r{^//# sourceMappingURL=(.*)$}, 1]
+  end
+
   def self.is_ember_cli_asset?(name)
     assets.include?(name) || name.start_with?("chunk.")
   end
diff --git a/lib/tasks/assets.rake b/lib/tasks/assets.rake
index 26617195aaf..27e7398cf84 100644
--- a/lib/tasks/assets.rake
+++ b/lib/tasks/assets.rake
@@ -53,9 +53,9 @@ task "assets:precompile:before": "environment" do
   require "digest/sha1"
 
   # Add ember cli chunks
-  Rails.configuration.assets.precompile.push(
-    *EmberCli.script_chunks.values.flatten.flat_map { |name| ["#{name}.js", "#{name}.map"] },
-  )
+  chunk_files = EmberCli.script_chunks.values.flatten.map { |name| "#{name}.js" }
+  map_files = chunk_files.map { |file| EmberCli.parse_source_map_path(file) }
+  Rails.configuration.assets.precompile.push(*chunk_files, *map_files)
 end
 
 task "assets:precompile:css" => "environment" do