1 files changed, 2 insertions, 2 deletions
diff --git a/spec/ruby/core/string/swapcase_spec.rb b/spec/ruby/core/string/swapcase_spec.rb
index b5d9b20451..d1e908d71d 100644
--- a/spec/ruby/core/string/swapcase_spec.rb
+++ b/spec/ruby/core/string/swapcase_spec.rb
@@ -182,10 +182,10 @@ describe "String#swapcase!" do
     "".swapcase!.should == nil
   end
 
-  it "raises a #{frozen_error_class} when self is frozen" do
+  it "raises a FrozenError when self is frozen" do
     ["", "hello"].each do |a|
       a.freeze
-      -> { a.swapcase! }.should raise_error(frozen_error_class)
+      -> { a.swapcase! }.should raise_error(FrozenError)
     end
   end
 end