diff --git a/include/dynamic-graph/exception-abstract.h b/include/dynamic-graph/exception-abstract.h
index b7e04ef9ad76f51086a2ca59cbf7e4b1cc939f38..ea8f30f9cf0db04a2784c43f7206d7bf7cced9b6 100644
--- a/include/dynamic-graph/exception-abstract.h
+++ b/include/dynamic-graph/exception-abstract.h
@@ -54,6 +54,7 @@ class DYNAMICGRAPH_EXPORT ExceptionAbstract : public std::exception
       ,SIGNAL = 100
       ,FACTORY = 200
       ,TRACES = 300
+      ,TOOLS = 700
     };
 
   static const std::string EXCEPTION_NAME;