diff --git a/hurricane/src/isobar/PyHurricane.cpp b/hurricane/src/isobar/PyHurricane.cpp
index aa799fb3..24c2182c 100644
--- a/hurricane/src/isobar/PyHurricane.cpp
+++ b/hurricane/src/isobar/PyHurricane.cpp
@@ -727,8 +727,10 @@ extern "C" {
     PyModule_AddObject ( module, "DiffusionLayer"       , (PyObject*)&PyTypeDiffusionLayer );
     Py_INCREF ( &PyTypeTransistorLayer );
     PyModule_AddObject ( module, "TransistorLayer"      , (PyObject*)&PyTypeTransistorLayer );
-    Py_INCREF ( &PyTypeContactLayer );
+    Py_INCREF ( &PyTypeViaLayer );
     PyModule_AddObject ( module, "ViaLayer"             , (PyObject*)&PyTypeViaLayer );
+    Py_INCREF ( &PyTypeContactLayer );
+    PyModule_AddObject ( module, "ContactLayer"         , (PyObject*)&PyTypeContactLayer );
     Py_INCREF ( &PyTypeNetExternalComponents );
     PyModule_AddObject ( module, "NetExternalComponents", (PyObject*)&PyTypeNetExternalComponents );
     Py_INCREF ( &PyTypeUpdateSession );
diff --git a/hurricane/src/isobar/hurricane/isobar/PyHurricane.h b/hurricane/src/isobar/hurricane/isobar/PyHurricane.h
index 9314a4d3..97bba964 100644
--- a/hurricane/src/isobar/hurricane/isobar/PyHurricane.h
+++ b/hurricane/src/isobar/hurricane/isobar/PyHurricane.h
@@ -19,6 +19,9 @@
 #ifndef __PYHURRICANE__
 #define __PYHURRICANE__
 
+// Enable Python debugging.
+// #define  DEBUG  1
+
 #include "Python.h"
 #include <iostream>
 #include <sstream>