1 files changed, 2 insertions, 2 deletions
diff --git a/spec/ruby/core/method/shared/to_s.rb b/spec/ruby/core/method/shared/to_s.rb
index b2d27d370f..bfb58e6896 100644
--- a/spec/ruby/core/method/shared/to_s.rb
+++ b/spec/ruby/core/method/shared/to_s.rb
@@ -8,12 +8,12 @@ describe :method_to_s, shared: true do
   end
 
   it "returns a String" do
-    @m.send(@method).should be_kind_of(String)
+    @m.send(@method).should.is_a?(String)
   end
 
   it "returns a String for methods defined with attr_accessor" do
     m = MethodSpecs::Methods.new.method :attr
-    m.send(@method).should be_kind_of(String)
+    m.send(@method).should.is_a?(String)
   end
 
   it "returns a String containing 'Method'" do