diff --git a/doc/optparse/argument_converters.rdoc b/doc/optparse/argument_converters.rdoc
index 8ad29ebc12..ac659da8c5 100644
--- a/doc/optparse/argument_converters.rdoc
+++ b/doc/optparse/argument_converters.rdoc
@@ -216,7 +216,7 @@ Executions:
 
 File +decimal_numeric.rb+
 defines an option whose argument is to be converted to an \Integer object.
-The argument is converted by method {Kernel#Integer
+The argument is converted by method Kernel#Integer
 
   :include: ruby/decimal_numeric.rb