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-rw-r--r--spec/ruby/library/set/compare_by_identity_spec.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/spec/ruby/library/set/compare_by_identity_spec.rb b/spec/ruby/library/set/compare_by_identity_spec.rb
index 9ed1602189..602d1e758e 100644
--- a/spec/ruby/library/set/compare_by_identity_spec.rb
+++ b/spec/ruby/library/set/compare_by_identity_spec.rb
@@ -5,7 +5,7 @@ describe "Set#compare_by_identity" do
it "compares its members by identity" do
a = "a"
b1 = "b"
- b2 = "b"
+ b2 = b1.dup
set = Set.new
set.compare_by_identity