diff --git a/app/lib/aether_utils.coffee b/app/lib/aether_utils.coffee
index a6efcd0fd..870c9330f 100644
--- a/app/lib/aether_utils.coffee
+++ b/app/lib/aether_utils.coffee
@@ -8,7 +8,7 @@ module.exports.createAetherOptions = (options) ->
   throw new Error 'Specify a code language to create an Aether instance' unless options.codeLanguage
 
   useInterpreter = options.useInterpreter
-  defaultToEsper = false #switch options.codeLanguage
+  defaultToEsper = true #switch options.codeLanguage
 #    when 'python' then me.level() < 15  # Esper currently works well until using range()
 #    when 'javascript' then me.level() < 22  # Esper currently works well until using hero.myFn = function() pattern
 #    when 'lua' then me.level() < 10  # Functions don't work in Esper yet, can't play forest function levels