diff --git a/ruby/red-gandiva/README.md b/ruby/red-gandiva/README.md
index aa3c0ba030709..a4df75ec8a0a0 100644
--- a/ruby/red-gandiva/README.md
+++ b/ruby/red-gandiva/README.md
@@ -63,6 +63,6 @@ end
 projector = Gandiva::Projector.new(schema, [expression1, expression2])
 table.each_record_batch do |record_batch|
   outputs = projector.evaluate(record_batch)
-  puts outputs.collect(&:values))
+  puts outputs.collect(&:values)
 end
 ```