diff --git a/pyste/src/ClassExporter.py b/pyste/src/ClassExporter.py
index 275b5cbd..c5536f6a 100644
--- a/pyste/src/ClassExporter.py
+++ b/pyste/src/ClassExporter.py
@@ -747,13 +747,14 @@ class _VirtualWrapperGenerator(object):
         This method creates the instance variable self.virtual_methods.
         '''        
         def IsVirtual(m):
-            return m.virtual and m.visibility != Scope.private        
+            return isinstance(m, Method) and m.virtual and m.visibility != Scope.private        
                                       
-        all_members = self.class_.members[:]
+        all_methods = [x for x in self.class_.members if IsVirtual(x)]
         for base in self.bases:
-            for base_member in base.members:
-                base_member.class_ = self.class_.FullName()
-                all_members.append(base_member)
+            base_methods = [x.Copy() for x in self.bases.members if IsVirtual(x)]
+            for base_method in base_methods:
+                base_method.class_ = self.class_.FullName()
+                all_methods.append(base_method)
         
         # extract the virtual methods, avoiding duplications. The duplication
         # must take in account the full signature without the class name, so 
@@ -771,10 +772,9 @@ class _VirtualWrapperGenerator(object):
             params = ', '.join([x.FullName() for x in method.parameters]) 
             return '%s %s(%s) %s' % (result, method.name, params, const) 
         
-        all_members = [x for x in all_members if type(x) == Method]
         self.virtual_methods = []
         already_added = {}
-        for member in all_members:
+        for member in all_methods:
             sig = MethodSig(member)
             if IsVirtual(member) and not sig in already_added:
                 self.virtual_methods.append(member)
diff --git a/pyste/src/HeaderExporter.py b/pyste/src/HeaderExporter.py
index 40d184e8..1d5fda1b 100644
--- a/pyste/src/HeaderExporter.py
+++ b/pyste/src/HeaderExporter.py
@@ -25,7 +25,7 @@ class HeaderExporter(Exporter):
         def IsInternalName(name):
             '''Returns true if the given name looks like a internal compiler
             structure'''
-            return name.startswith('__')
+            return name.startswith('_')
         
         Exporter.SetDeclarations(self, declarations)
         header = os.path.normpath(self.parser_header)
diff --git a/pyste/src/declarations.py b/pyste/src/declarations.py
index d32b376a..a037c04d 100644
--- a/pyste/src/declarations.py
+++ b/pyste/src/declarations.py
@@ -186,7 +186,11 @@ class Function(Declaration):
         return len(self.parameters)
 
     maxArgs = property(_MaxArgs)
+
     
+    def Copy(self):
+        return self.__class__(
+            self.name, self.namespace, self.result, self.params[:])       
    
    
 class Operator(Function):
@@ -199,7 +203,6 @@ class Operator(Function):
         return namespace + 'operator' + self.name 
 
 
-
 class Method(Function):
     'The declaration of a method.'
 
@@ -234,6 +237,19 @@ class Method(Function):
             return '(%s (%s::*)(%s) %s)&%s' %\
                 (result, self.class_, params, const, self.FullName()) 
 
+
+    def Copy(self):
+        return self.__class__(
+            self.name, 
+            self.class_, 
+            self.result, 
+            self.params[:], 
+            self.visib, 
+            self.virtual, 
+            self.abstract, 
+            self.static, 
+            self.const)
+
     
 class Constructor(Method):
     'A constructor of a class.'
diff --git a/pyste/src/pyste.py b/pyste/src/pyste.py
index f083601f..62cf3439 100644
--- a/pyste/src/pyste.py
+++ b/pyste/src/pyste.py
@@ -34,7 +34,7 @@ from policies import *
 from CppParser import CppParser, CppParserError
 import time
 
-__VERSION__ = '0.7.7'
+__VERSION__ = '0.7.9'
 
 def RecursiveIncludes(include):
     'Return a list containg the include dir and all its subdirectories'