1 files changed, 20 insertions, 0 deletions
diff --git a/mrbgems/mruby-io/mrblib/kernel.rb b/mrbgems/mruby-io/mrblib/kernel.rb
index 373b76f98..42d5bb1d1 100644
--- a/mrbgems/mruby-io/mrblib/kernel.rb
+++ b/mrbgems/mruby-io/mrblib/kernel.rb
@@ -12,4 +12,24 @@ module Kernel
       File.open(file, *rest, &block)
     end
   end
+
+  def print(*args)
+    $stdout.print(*args)
+  end
+
+  def puts(*args)
+    $stdout.puts(*args)
+  end
+
+  def printf(*args)
+    $stdout.printf(*args)
+  end
+
+  def gets(*args)
+    $stdin.gets(*args)
+  end
+
+  def getc(*args)
+    $stdin.getc(*args)
+  end
 end