diff --git a/lib/ast/basic_expressions.rb b/lib/ast/basic_expressions.rb
index 05be240..27b82c1 100644
--- a/lib/ast/basic_expressions.rb
+++ b/lib/ast/basic_expressions.rb
@@ -50,6 +50,9 @@ module Ast
     end
   end
 
+  class VariableExpression < NameExpression
+  end
+
   class ModuleName < NameExpression
   end
 
diff --git a/lib/ast/call_site_expression.rb b/lib/ast/call_site_expression.rb
index 90bad5a..5e5102b 100644
--- a/lib/ast/call_site_expression.rb
+++ b/lib/ast/call_site_expression.rb
@@ -20,17 +20,5 @@ module Ast
     def attributes
       [:name , :args , :receiver]
     end
-  end
-  
-  class VariableExpression < CallSiteExpression
-
-    def initialize name
-      super( :_get_instance_variable  , [StringExpression.new(name)] )
-    end
-    def inspect
-      self.class.name + ".new(" + args[0].string.inspect + ")"  
-    end
-
-  end
-  
+  end  
 end
\ No newline at end of file