diff --git a/include/hpp/manipulation/graph/fwd.hh b/include/hpp/manipulation/graph/fwd.hh
index 100ee43c222b3790b70045f85dbe551c4c381f9d..c74bb8958d5a2e83fb1da25011cec8dc9f45001b 100644
--- a/include/hpp/manipulation/graph/fwd.hh
+++ b/include/hpp/manipulation/graph/fwd.hh
@@ -57,7 +57,8 @@ namespace hpp {
       typedef hpp::core::DifferentiableFunctionPtr_t DifferentiableFunctionPtr_t;
       typedef hpp::core::SizeIntervals_t SizeIntervals_t;
       typedef std::vector <SizeIntervals_t> IntervalsContainer_t;
-      typedef std::list < LockedJointPtr_t > LockedJoints_t;
+      typedef hpp::core::NumericalConstraints_t NumericalConstraints_t;
+      typedef hpp::core::LockedJoints_t LockedJoints_t;
 
       class Histogram;
       class NodeHistogram;