diff --git a/test/test/spec/gcd_spec.rb b/test/test/spec/gcd_spec.rb
index 1b4b1251..df99ff14 100644
--- a/test/test/spec/gcd_spec.rb
+++ b/test/test/spec/gcd_spec.rb
@@ -17,7 +17,7 @@ class TestDispatchOnce
 end
 
 describe "Dispatch.once" do
-  xit "yields a block just once" do
+  it "yields a block just once" do
     obj = TestDispatchOnce.new
     threads = []
     8.times do