diff --git a/app/editor.rb b/app/editor.rb
index 2db5b51b..116bb2ae 100644
--- a/app/editor.rb
+++ b/app/editor.rb
@@ -1,3 +1,5 @@
+# backtick_javascript: true
+
 # Wrapper for CodeMirror objects
 class Editor
   def initialize(dom_id, options)
diff --git a/app/ruby_engine/cruby_wasi.rb b/app/ruby_engine/cruby_wasi.rb
index 99c7bb57..de4e96b6 100644
--- a/app/ruby_engine/cruby_wasi.rb
+++ b/app/ruby_engine/cruby_wasi.rb
@@ -1,4 +1,5 @@
 # await: *await*, loading
+# backtick_javascript: true
 
 require 'await'
 
diff --git a/app/ruby_engine/opal_webworker.rb b/app/ruby_engine/opal_webworker.rb
index dc4059c3..0e36439f 100644
--- a/app/ruby_engine/opal_webworker.rb
+++ b/app/ruby_engine/opal_webworker.rb
@@ -1,4 +1,5 @@
 # await: *await*, loading
+# backtick_javascript: true
 
 require 'base64'
 require 'json'
diff --git a/app/try_ruby.rb b/app/try_ruby.rb
index 0a9fcbe3..b1607710 100644
--- a/app/try_ruby.rb
+++ b/app/try_ruby.rb
@@ -1,4 +1,5 @@
 # await: true
+# backtick_javascript: true
 
 require 'dependencies'
 require 'editor'