diff --git a/ruby/shell/builtins.rb b/ruby/shell/builtins.rb
index 6c57d80..6c7749f 100644
--- a/ruby/shell/builtins.rb
+++ b/ruby/shell/builtins.rb
@@ -66,9 +66,14 @@ module Shell
       0
     end
 
-    def bulitin_pwd(_args)
+    def builtin_pwd(_args)
       puts Dir.pwd
       0
     end
+
+    def builtin_clear(_args)
+      print "\033[2J"
+      0
+    end
   end
 end