diff --git a/src/dynamic_graph/entity.py b/src/dynamic_graph/entity.py
index c6b6eccbce47e327542f11240395eba827e0da18..fa1634f419bf712af04c4fca5089e682741ee61b 100644
--- a/src/dynamic_graph/entity.py
+++ b/src/dynamic_graph/entity.py
@@ -86,7 +86,7 @@ class Entity (object) :
         Alias of displaySignals to reduce verbosity. To be confirmed.
         """
         sl = wrap.entity_list_signals(self.obj)
-        return map(lambda pyObj: signalBase.SignalBase(obj=pyObj), sl)
+        return map(lambda pyObj: signal_base.SignalBase(obj=pyObj), sl)
 
     def commands(self):
         """