diff --git a/src/dynamic_graph/entity.py b/src/dynamic_graph/entity.py
index 66ec5dc48c953b317e248b810ea1515b46838830..037eda8dd999dcf10dde7853f114d852f2385b66 100644
--- a/src/dynamic_graph/entity.py
+++ b/src/dynamic_graph/entity.py
@@ -118,7 +118,10 @@ class Entity (object) :
 
 
     def __getattr__(self, name):
-       return self.signal(name).value
+        try:
+            return self.signal(name).value
+        except:
+            object.__getattr__(self, name)
 
     def __setattr__(self, name,value):
         try: