diff --git a/app/views/play/level/modal/editor_config_modal.coffee b/app/views/play/level/modal/editor_config_modal.coffee
index 6eee66071..6be98b44d 100644
--- a/app/views/play/level/modal/editor_config_modal.coffee
+++ b/app/views/play/level/modal/editor_config_modal.coffee
@@ -62,7 +62,7 @@ module.exports = class EditorConfigModal extends View
     @aceConfig.behaviors = @$el.find('#tome-behaviors').prop('checked')
     me.set 'aceConfig', @aceConfig
     Backbone.Mediator.publish 'tome:change-config'
-    Backbone.Mediator.publish 'tome:change-language' unless @aceConfig.language is oldLanguage
+    Backbone.Mediator.publish 'tome:change-language' unless @aceConfig.language isnt oldLanguage
     me.save()
 
   destroy: ->
diff --git a/app/views/play/level/tome/spell.coffee b/app/views/play/level/tome/spell.coffee
index b18263e9f..a0cb680cb 100644
--- a/app/views/play/level/tome/spell.coffee
+++ b/app/views/play/level/tome/spell.coffee
@@ -85,7 +85,7 @@ module.exports = class Spell
     aether.hasChangedSignificantly (newSource ? @originalSource), (currentSource ? @source), true, true
 
   createAether: (thang) ->
-    aceConfig = me.get 'aceConfig' ? {}
+    aceConfig = me.get('aceConfig') ? {}
     aetherOptions =
       problems:
         jshint_W040: {level: "ignore"}
@@ -110,7 +110,7 @@ module.exports = class Spell
     aether
 
   updateLanguageAether: ->
-    aceConfig = me.get 'aceConfig' ? {}
+    aceConfig = me.get('aceConfig') ? {}
     for thangId, spellThang of @thangs
       spellThang.aether?.setLanguage (aceConfig.language ? 'javascript')
       spellThang.castAether = null
diff --git a/app/views/play/level/tome/spell_view.coffee b/app/views/play/level/tome/spell_view.coffee
index 4319981d8..17a813459 100644
--- a/app/views/play/level/tome/spell_view.coffee
+++ b/app/views/play/level/tome/spell_view.coffee
@@ -17,7 +17,7 @@ module.exports = class SpellView extends View
 
   editModes:
     'javascript': 'ace/mode/javascript'
-    'coffeescript': 'ace/mode/coffeescript'
+    'coffeescript': 'ace/mode/coffee'
 
   keyBindings:
     'default': null
@@ -567,14 +567,14 @@ module.exports = class SpellView extends View
     @ace.setValue pretty
 
   onChangeEditorConfig: (e) ->
-    aceConfig = me.get 'aceConfig'
+    aceConfig = me.get('aceConfig') ? {}
     @ace.setDisplayIndentGuides aceConfig.indentGuides # default false
     @ace.setShowInvisibles aceConfig.invisibles # default false
     @ace.setKeyboardHandler @keyBindings[aceConfig.keyBindings ? 'default']
-    @aceSession.setMode @editModes[aceConfig.language ? 'javascript']
+    # @aceSession.setMode @editModes[aceConfig.language ? 'javascript']
 
   onChangeLanguage: (e) ->
-    aceConfig = me.get 'aceConfig'
+    aceConfig = me.get('aceConfig') ? {}
     @aceSession.setMode @editModes[aceConfig.language ? 'javascript']
 
   dismiss: ->
diff --git a/app/views/play/level/tome/tome_view.coffee b/app/views/play/level/tome/tome_view.coffee
index a4e3f8c2b..5c92a9bcf 100644
--- a/app/views/play/level/tome/tome_view.coffee
+++ b/app/views/play/level/tome/tome_view.coffee
@@ -218,7 +218,7 @@ module.exports = class TomeView extends View
     Backbone.Mediator.publish 'tome:cast-spells', spells: @spells
 
   updateLanguageForAllSpells: ->
-    spell.updateLanguageAether for spellKey, spell of @spells
+    spell.updateLanguageAether() for spellKey, spell of @spells
 
   destroy: ->
     spell.destroy() for spellKey, spell of @spells