diff --git a/compiler/cpp/src/generate/t_py_generator.cc b/compiler/cpp/src/generate/t_py_generator.cc
index c87e764..0b7ad85 100644
--- a/compiler/cpp/src/generate/t_py_generator.cc
+++ b/compiler/cpp/src/generate/t_py_generator.cc
@@ -736,7 +736,7 @@
       indent() << "self._processMap = {}" << endl;
   } else {
     f_service_ <<
-      indent() << extends << ".Processor.__init__(self)" << endl;
+      indent() << extends << ".Processor.__init__(self, handler)" << endl;
   }
   for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
     f_service_ <<