1 files changed, 3 insertions, 2 deletions
diff --git a/spec/ruby/core/thread/shared/wakeup.rb b/spec/ruby/core/thread/shared/wakeup.rb
index f111edf0fd..c89235ba60 100644
--- a/spec/ruby/core/thread/shared/wakeup.rb
+++ b/spec/ruby/core/thread/shared/wakeup.rb
@@ -36,7 +36,7 @@ describe :thread_wakeup, shared: true do
 
   it "does not result in a deadlock" do
     t = Thread.new do
-      100.times { Thread.stop }
+      10.times { Thread.stop }
     end
 
     while t.status
@@ -47,6 +47,7 @@ describe :thread_wakeup, shared: true do
         t.status.should == false
       end
       Thread.pass
+      sleep 0.001
     end
 
     t.status.should == false
@@ -56,6 +57,6 @@ describe :thread_wakeup, shared: true do
   it "raises a ThreadError when trying to wake up a dead thread" do
     t = Thread.new { 1 }
     t.join
-    -> { t.send @method }.should raise_error(ThreadError)
+    -> { t.send @method }.should.raise(ThreadError)
   end
 end