diff --git a/test/nodes/shared_node_examples.rb b/test/nodes/shared_node_examples.rb
index f1c301d..4447cf3 100644
--- a/test/nodes/shared_node_examples.rb
+++ b/test/nodes/shared_node_examples.rb
@@ -4,7 +4,7 @@
   describe 'construction' do
     it 'requires two arguments' do
       err = ->{ node.new }.must_raise ArgumentError
-      err.message.must_match %r{wrong number of arguments \(0 for 2\)}
+      err.message.must_match %r{wrong number of arguments (?:\(0 for 2\)|\(given 0, expected 2\))}
     end
 
     it 'creates a new instance' do