diff --git a/pyste/src/ClassExporter.py b/pyste/src/ClassExporter.py
index e6d5bb6b..63bc26f3 100644
--- a/pyste/src/ClassExporter.py
+++ b/pyste/src/ClassExporter.py
@@ -747,7 +747,7 @@ class _VirtualWrapperGenerator(object):
         This method creates the instance variable self.virtual_methods.
         '''        
         def IsVirtual(m):
-            return isinstance(m, Method) and m.virtual and m.visibility != Scope.private        
+            return type(m) is Method and m.virtual and m.visibility != Scope.private        
                                       
         all_methods = [x for x in self.class_.members if IsVirtual(x)]
         for base in self.bases:
diff --git a/pyste/src/pyste.py b/pyste/src/pyste.py
index 6aa4f7b6..a608a8df 100644
--- a/pyste/src/pyste.py
+++ b/pyste/src/pyste.py
@@ -37,7 +37,7 @@ from policies import *
 from CppParser import CppParser, CppParserError
 import time
 
-__VERSION__ = '0.8.0'
+__VERSION__ = '0.8.1'
 
 def RecursiveIncludes(include):
     'Return a list containg the include dir and all its subdirectories'