diff --git a/lib/irb/cmd/help.rb b/lib/irb/cmd/help.rb
index 0629479e92..d82e78fb57 100644
--- a/lib/irb/cmd/help.rb
+++ b/lib/irb/cmd/help.rb
@@ -17,7 +17,8 @@ module IRB
     class Help < Nop
       def execute(*names)
         require 'rdoc/ri/driver'
-        IRB::ExtendCommand::Help.const_set(:Ri, RDoc::RI::Driver.new)
+        opts = RDoc::RI::Driver.process_args([])
+        IRB::ExtendCommand::Help.const_set(:Ri, RDoc::RI::Driver.new(opts))
       rescue LoadError, SystemExit
         IRB::ExtendCommand::Help.remove_method(:execute)
         # raise NoMethodError in ensure