Fix a CI failure in bigdecimal

1 files changed, 1 insertions, 1 deletions

diff --git a/spec/ruby/library/bigdecimal/round_spec.rb b/spec/ruby/library/bigdecimal/round_spec.rb
index 501a1a7342..caf68afa04 100644
--- a/spec/ruby/library/bigdecimal/round_spec.rb
+++ b/spec/ruby/library/bigdecimal/round_spec.rb
@@ -229,6 +229,6 @@ describe "BigDecimal#round" do
   end
 
   it "raise for a non-existent round mode" do
-    -> { @p1_50.round(0, :nonsense) }.should raise_error(ArgumentError, "invalid rounding mode")
+    -> { @p1_50.round(0, :nonsense) }.should raise_error(ArgumentError, "invalid rounding mode (nonsense)")
   end
 end