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-rw-r--r--spec/ruby/core/kernel/dup_spec.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/spec/ruby/core/kernel/dup_spec.rb b/spec/ruby/core/kernel/dup_spec.rb
index fe0a269d69..70198abdb7 100644
--- a/spec/ruby/core/kernel/dup_spec.rb
+++ b/spec/ruby/core/kernel/dup_spec.rb
@@ -32,7 +32,7 @@ describe "Kernel#dup" do
@obj.freeze
dup = @obj.dup
- dup.frozen?.should == false
+ dup.should_not.frozen?
end
it "copies instance variables" do