diff --git a/src/dynamic-graph-py.cc b/src/dynamic-graph-py.cc
index 1e2e73ab714ea9a415db0696059ba3e70729e86e..3c0efbdd940cf382111998e5e1a48518704188eb 100644
--- a/src/dynamic-graph-py.cc
+++ b/src/dynamic-graph-py.cc
@@ -162,7 +162,7 @@ initwrap(void)
     if (m == NULL)
         return;
 
-    std::string msg("dynamic_graph.wrap.error");
+    std::string msg("dynamic_graph.error");
 
     dynamicgraph::python::error =
       PyErr_NewException(const_cast<char*>(msg.c_str()), NULL, NULL);