diff --git a/trunk/paradiseo-mo/src/neighborhood/moBackableNeighbor.h b/trunk/paradiseo-mo/src/neighborhood/moBackableNeighbor.h
index 4950aa838..76bc5493e 100644
--- a/trunk/paradiseo-mo/src/neighborhood/moBackableNeighbor.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moBackableNeighbor.h
@@ -40,8 +40,8 @@
 /**
  * Neighbor with a move back function to use in a moFullEvalByModif
  */
-template< class EOT >
-class moBackableNeighbor : virtual public moNeighbor<EOT>
+template< class EOT, class Fitness=typename EOT::Fitness >
+class moBackableNeighbor : virtual public moNeighbor<EOT, Fitness>
 {
 public:
 
diff --git a/trunk/paradiseo-mo/src/neighborhood/moDummyNeighbor.h b/trunk/paradiseo-mo/src/neighborhood/moDummyNeighbor.h
index 628cf285a..a8cd01087 100644
--- a/trunk/paradiseo-mo/src/neighborhood/moDummyNeighbor.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moDummyNeighbor.h
@@ -35,8 +35,8 @@ Contact: paradiseo-help@lists.gforge.inria.fr
 /**
  * Dummy Neighborhood
  */
-template< class EOT >
-class moDummyNeighbor : public moNeighbor< EOT > {
+template< class EOT, class Fitness=typename EOT::Fitness >
+class moDummyNeighbor : public moNeighbor< EOT, Fitness > {
 public:
 
     /**
diff --git a/trunk/paradiseo-mo/src/neighborhood/moIndexNeighbor.h b/trunk/paradiseo-mo/src/neighborhood/moIndexNeighbor.h
index 0603c00c1..cf444dadc 100644
--- a/trunk/paradiseo-mo/src/neighborhood/moIndexNeighbor.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moIndexNeighbor.h
@@ -40,23 +40,23 @@
 /**
  * Index Neighbor
  */
-template< class EOT >
-class moIndexNeighbor : virtual public moNeighbor<EOT>
+template< class EOT, class Fitness=typename EOT::Fitness >
+class moIndexNeighbor : virtual public moNeighbor<EOT, Fitness>
 {
 public:
 
-    using moNeighbor<EOT>::fitness;
+    using moNeighbor<EOT, Fitness>::fitness;
 
     /**
      * Default Constructor
      */
-    moIndexNeighbor() : moNeighbor<EOT>(), key(0) {}
+    moIndexNeighbor() : moNeighbor<EOT, Fitness>(), key(0) {}
 
     /**
      * Copy Constructor
      * @param _n the neighbor to copy
      */
-    moIndexNeighbor(const moIndexNeighbor& _n) : moNeighbor<EOT>(_n) {
+    moIndexNeighbor(const moIndexNeighbor& _n) : moNeighbor<EOT, Fitness>(_n) {
         this->key = _n.key ;
     }
 
@@ -64,8 +64,8 @@ public:
      * Assignment operator
      * @param _source the source neighbor
      */
-    virtual moIndexNeighbor<EOT> & operator=(const moIndexNeighbor<EOT> & _source) {
-        moNeighbor<EOT>::operator=(_source);
+    virtual moIndexNeighbor<EOT, Fitness> & operator=(const moIndexNeighbor<EOT, Fitness> & _source) {
+        moNeighbor<EOT, Fitness>::operator=(_source);
         this->key = _source.key ;
         return *this ;
     }
diff --git a/trunk/paradiseo-mo/src/neighborhood/moNeighbor.h b/trunk/paradiseo-mo/src/neighborhood/moNeighbor.h
index c097a7e5f..7f6accd03 100644
--- a/trunk/paradiseo-mo/src/neighborhood/moNeighbor.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moNeighbor.h
@@ -43,12 +43,12 @@
 /**
  * Container of the neighbor informations
  */
-template< class EOType >
+template< class EOType, class Fitness=typename EOType::Fitness>
 class moNeighbor : public eoObject, public eoPersistent
 {
 public:
     typedef EOType EOT;
-    typedef typename EOT::Fitness Fitness;
+
     /**
      * Default Constructor
      */
@@ -58,7 +58,7 @@ public:
      * Copy Constructor
      * @param _neighbor to copy
      */
-    moNeighbor(const moNeighbor<EOT>& _neighbor) {
+    moNeighbor(const moNeighbor<EOT, Fitness>& _neighbor) {
         repFitness = _neighbor.fitness();
     }
 
@@ -67,7 +67,7 @@ public:
      * @param _neighbor the neighbor to assign
      * @return a neighbor equal to the other
      */
-    virtual moNeighbor<EOT>& operator=(const moNeighbor<EOT>& _neighbor) {
+    virtual moNeighbor<EOT, Fitness>& operator=(const moNeighbor<EOT, Fitness>& _neighbor) {
         repFitness = _neighbor.fitness();
         return (*this);
     }
diff --git a/trunk/paradiseo-mo/src/problems/permutation/moShiftNeighbor.h b/trunk/paradiseo-mo/src/problems/permutation/moShiftNeighbor.h
index 791918cf9..88d48301d 100644
--- a/trunk/paradiseo-mo/src/problems/permutation/moShiftNeighbor.h
+++ b/trunk/paradiseo-mo/src/problems/permutation/moShiftNeighbor.h
@@ -35,12 +35,12 @@ Contact: paradiseo-help@lists.gforge.inria.fr
 /**
  * Indexed Shift Neighbor
  */
-template <class EOT>
-class moShiftNeighbor: public moIndexNeighbor<EOT>
+template <class EOT, class Fitness=typename EOT::Fitness>
+class moShiftNeighbor: public moIndexNeighbor<EOT, Fitness>
 {
 public:
 
-    using moIndexNeighbor<EOT>::key;
+    using moIndexNeighbor<EOT, Fitness>::key;
 
     /**
      * Apply move on a solution regarding a key
diff --git a/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighbor.h b/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighbor.h
index 37ef990c9..2846b6f26 100644
--- a/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighbor.h
+++ b/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighbor.h
@@ -36,8 +36,8 @@ Contact: paradiseo-help@lists.gforge.inria.fr
 /**
  * Swap Neighbor
  */
-template <class EOT>
-class moSwapNeighbor: public moBackableNeighbor<EOT>
+template <class EOT, class Fitness=typename EOT::Fitness>
+class moSwapNeighbor: public moBackableNeighbor<EOT, Fitness>
 {
 public:
 
diff --git a/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighborhood.h b/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighborhood.h
index b7ea59984..5b573954a 100644
--- a/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighborhood.h
+++ b/trunk/paradiseo-mo/src/problems/permutation/moSwapNeighborhood.h
@@ -36,11 +36,11 @@ Contact: paradiseo-help@lists.gforge.inria.fr
 /**
  * Swap Neighborhood
  */
-template <class EOT>
-class moSwapNeighborhood : public moNeighborhood<moSwapNeighbor<EOT> >
+template <class EOT, class Fitness=typename EOT::Fitness>
+class moSwapNeighborhood : public moNeighborhood<moSwapNeighbor<EOT, Fitness> >
 {
 public:
-    typedef moSwapNeighbor<EOT> Neighbor;
+    typedef moSwapNeighbor<EOT, Fitness> Neighbor;
 
     /**
      * @return if there are available Neighbor