diff --git a/lib/discourse.rb b/lib/discourse.rb
index 79e59845982..92600ab61b7 100644
--- a/lib/discourse.rb
+++ b/lib/discourse.rb
@@ -451,6 +451,7 @@ module Discourse
 
     # in case v8 was initialized we want to make sure it is nil
     PrettyText.reset_context
+    PrettyText.v8
 
     Tilt::ES6ModuleTranspilerTemplate.reset_context if defined? Tilt::ES6ModuleTranspilerTemplate
     JsLocaleHelper.reset_context if defined? JsLocaleHelper