From 1bd188be7e8de06584f2398d865c0870cd0b690b Mon Sep 17 00:00:00 2001
From: Chris Seaton <chris.seaton@shopify.com>
Date: Wed, 3 Aug 2022 23:04:38 +0000
Subject: [PATCH] Update the faker RUBY_DESCRIPTION

---
 template/fake.rb.in | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/template/fake.rb.in b/template/fake.rb.in
index 21ae7ef1de89c6..9417f3ad77e3b9 100644
--- a/template/fake.rb.in
+++ b/template/fake.rb.in
@@ -43,8 +43,8 @@ class Object
   elsif RubyVM.const_defined?(:YJIT) && RubyVM::YJIT.enabled?
     options << ' +YJIT'
   end
-  if GC.const_defined?(:MMTk)
-    options << ' +MMTk'
+  if defined?(GC::MMTk.enabled?) && GC::MMTk.enabled?
+    options << " +MMTk(#{GC::MMTk.plan_name})"
   end
   RUBY_DESCRIPTION = (<%=arg['RUBY_DESCRIPTION_PRE'].inspect%> + options.join('') + <%=arg['RUBY_DESCRIPTION_POST'].inspect%>).freeze
 end