diff --git a/include/dynamic-graph/signal-ptr.h b/include/dynamic-graph/signal-ptr.h
index 4acdffed1b433d0c2ec5e46c0a31ed20def7ab5f..29969ce6fc5ebc15ed2830764b64b3bd737c0b0e 100644
--- a/include/dynamic-graph/signal-ptr.h
+++ b/include/dynamic-graph/signal-ptr.h
@@ -129,8 +129,9 @@ namespace dynamicgraph
 						std::string next2="" ) const;
 
   protected: // Interdiction of the rest of the heritage
-
+    using Signal<T,Time>::addDependency;
     virtual void addDependency () {}
+    using Signal<T,Time>::removeDependency;
     virtual void removeDependency () {}
     virtual void clearDependencies () {}