1 files changed, 2 insertions, 2 deletions
diff --git a/spec/ruby/core/hash/flatten_spec.rb b/spec/ruby/core/hash/flatten_spec.rb
index 825da15bfc..18e9a7b56a 100644
--- a/spec/ruby/core/hash/flatten_spec.rb
+++ b/spec/ruby/core/hash/flatten_spec.rb
@@ -9,7 +9,7 @@ describe "Hash#flatten" do
   end
 
   it "returns an Array" do
-    {}.flatten.should be_an_instance_of(Array)
+    {}.flatten.should.instance_of?(Array)
   end
 
   it "returns an empty Array for an empty Hash" do
@@ -57,6 +57,6 @@ describe "Hash#flatten" do
   it "raises a TypeError if given a non-Integer argument" do
     -> do
       @h.flatten(Object.new)
-    end.should raise_error(TypeError)
+    end.should.raise(TypeError)
   end
 end