Use FrozenError instead of frozen_error_class

1 files changed, 2 insertions, 2 deletions

diff --git a/spec/ruby/library/stringio/shared/read.rb b/spec/ruby/library/stringio/shared/read.rb
index 15ce58ae6a..c60677bba7 100644
--- a/spec/ruby/library/stringio/shared/read.rb
+++ b/spec/ruby/library/stringio/shared/read.rb
@@ -27,8 +27,8 @@ describe :stringio_read, shared: true do
     -> { @io.send(@method, 7, Object.new) }.should raise_error(TypeError)
   end
 
-  it "raises a #{frozen_error_class} error when passed a frozen String as buffer" do
-    -> { @io.send(@method, 7, "".freeze) }.should raise_error(frozen_error_class)
+  it "raises a FrozenError error when passed a frozen String as buffer" do
+    -> { @io.send(@method, 7, "".freeze) }.should raise_error(FrozenError)
   end
 end