diff --git a/src/dynamic-graph-py.cc b/src/dynamic-graph-py.cc
index d9a0e2ef4970d89047ed4f1868f0cf7a676cef94..0af45dcb9083dcd5a1c834da8ee91f9cdd132e89 100644
--- a/src/dynamic-graph-py.cc
+++ b/src/dynamic-graph-py.cc
@@ -59,6 +59,7 @@ namespace dynamicgraph {
 
     namespace factory {
       extern PyObject* getEntityClassList(PyObject* self, PyObject* args);
+      extern PyObject* getEntityMap(PyObject* self, PyObject* args);
     }
     namespace signalCaster {
       extern PyObject* getSignalTypeList(PyObject* self, PyObject* args);
diff --git a/src/factory-py.cc b/src/factory-py.cc
index 76c0f2f7a78d2b4f19b21988e2c3117b8ebf2d01..aff897b6d20f05945ace3db06260645217b01119 100644
--- a/src/factory-py.cc
+++ b/src/factory-py.cc
@@ -51,6 +51,7 @@ namespace dynamicgraph {
 
 	return Py_BuildValue("O", classTuple);
       }
+
       
     } // namespace factory
   } // namespace python