1 files changed, 1 insertions, 0 deletions
diff --git a/lib/rake.rb b/lib/rake.rb
index 63412b1531..a0685b4ab2 100755
--- a/lib/rake.rb
+++ b/lib/rake.rb
@@ -802,6 +802,7 @@ module Rake
   # parallel using Ruby threads.
   #
   class MultiTask < Task
+    private
     def invoke_prerequisites(args, invocation_chain)
       threads = @prerequisites.collect { |p|
         Thread.new(p) { |r| application[r].invoke_with_call_chain(args, invocation_chain) }