--- Mnemonic.rb.orig	2013-06-25 08:42:06.520402320 +0200
+++ Mnemonic.rb	2013-06-25 08:39:13.981657913 +0200
@@ -146,7 +146,7 @@
     end
     mutators.each do |x|
       eval %{
-        class Mnemonic_#{system.type}_#{mangleMethodName(x)}
+        class Mnemonic_#{system.class}_#{mangleMethodName(x)}
           def initialize( *args, &block )
             @args = args
             @block = block
@@ -161,7 +161,7 @@
           end
         end
         def self.#{x}(*args, &block)
-          executeCommand( Mnemonic_#{system.type}_#{mangleMethodName(x)}.new( *args, &block ) )
+          executeCommand( Mnemonic_#{system.class}_#{mangleMethodName(x)}.new( *args, &block ) )
         end
       }
     end