1 files changed, 2 insertions, 4 deletions
diff --git a/prelude.rb b/prelude.rb
index 27d54d1740..7cfe0892b3 100644
--- a/prelude.rb
+++ b/prelude.rb
@@ -8,11 +8,9 @@ class Thread
   # Wraps the block in a single, VM-global Mutex.synchronize, returning the
   # value of the block. A thread executing inside the exclusive section will
   # only block other threads which also use the Thread.exclusive mechanism.
-  def self.exclusive
+  def self.exclusive(&block)
     warn "Thread.exclusive is deprecated, use Thread::Mutex", caller
-    MUTEX_FOR_THREAD_EXCLUSIVE.synchronize{
-      yield
-    }
+    MUTEX_FOR_THREAD_EXCLUSIVE.synchronize(&block)
   end
 end