diff --git a/trunk/paradiseo-moeo/src/fitness/moeoDominanceCountRankingFitnessAssignment.h b/trunk/paradiseo-moeo/src/fitness/moeoDominanceCountRankingFitnessAssignment.h
index 22426bdd3..14b218dd6 100644
--- a/trunk/paradiseo-moeo/src/fitness/moeoDominanceCountRankingFitnessAssignment.h
+++ b/trunk/paradiseo-moeo/src/fitness/moeoDominanceCountRankingFitnessAssignment.h
@@ -70,7 +70,7 @@ public:
      * Default ctor
      * @param _nocopy boolean to move away copies
      */
-    moeoDominanceCountRankingFitnessAssignment(bool _nocopy=true) : comparator(paretoComparator), archive(defaultArchive), matrix(_nocopy)
+    moeoDominanceCountRankingFitnessAssignment(bool _nocopy=false) : comparator(paretoComparator), archive(defaultArchive), matrix(_nocopy)
     {}
 
 
@@ -79,7 +79,7 @@ public:
      * @param _archive the archive used
      * @param _nocopy boolean to move away copies
      */
-    moeoDominanceCountRankingFitnessAssignment(moeoArchive < MOEOT > & _archive, bool _nocopy=true) : comparator(paretoComparator), archive(_archive), matrix(_nocopy)
+    moeoDominanceCountRankingFitnessAssignment(moeoArchive < MOEOT > & _archive, bool _nocopy=false) : comparator(paretoComparator), archive(_archive), matrix(_nocopy)
     {}
 
 
@@ -88,7 +88,7 @@ public:
      * @param _comparator the functor used to compare objective vectors
      * @param _nocopy boolean to move away copies
      */
-    moeoDominanceCountRankingFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, bool _nocopy=true) : comparator(_comparator), archive(defaultArchive), matrix(_comparator, _nocopy)
+    moeoDominanceCountRankingFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, bool _nocopy=false) : comparator(_comparator), archive(defaultArchive), matrix(_comparator, _nocopy)
     {}
 
 
@@ -98,7 +98,7 @@ public:
      * @param _archive the archive used
      * @param _nocopy boolean to move away copies
      */
-    moeoDominanceCountRankingFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, moeoArchive < MOEOT > & _archive, bool _nocopy=true) : comparator(_comparator), archive(_archive), matrix(_comparator, _nocopy)
+    moeoDominanceCountRankingFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, moeoArchive < MOEOT > & _archive, bool _nocopy=false) : comparator(_comparator), archive(_archive), matrix(_comparator, _nocopy)
     {}
 
 
diff --git a/trunk/paradiseo-moeo/src/fitness/moeoDominanceRankFitnessAssignment.h b/trunk/paradiseo-moeo/src/fitness/moeoDominanceRankFitnessAssignment.h
index e67d76658..205ecdb3e 100644
--- a/trunk/paradiseo-moeo/src/fitness/moeoDominanceRankFitnessAssignment.h
+++ b/trunk/paradiseo-moeo/src/fitness/moeoDominanceRankFitnessAssignment.h
@@ -66,7 +66,7 @@ public:
      * @param _start a start value used to determine the fitness (default _start = 1.0)
      * @param _nocopy boolean to penalize clone individuals (default = false)
      */
-    moeoDominanceRankFitnessAssignment(double _start=1.0, bool _nocopy=true) : comparator(paretoComparator), archive(defaultArchive), start(_start), matrix(_nocopy)
+    moeoDominanceRankFitnessAssignment(double _start=1.0, bool _nocopy=false) : comparator(paretoComparator), archive(defaultArchive), start(_start), matrix(_nocopy)
     {}
 
 
@@ -76,7 +76,7 @@ public:
      * @param _start a start value used to determine the fitness (default _start = 1.0)
      * @param _nocopy boolean to penalize clone individuals (default = false)
      */
-    moeoDominanceRankFitnessAssignment(moeoArchive < MOEOT > & _archive, double _start=1.0, bool _nocopy=true) : comparator(paretoComparator), archive(_archive), start(_start), matrix(_nocopy)
+    moeoDominanceRankFitnessAssignment(moeoArchive < MOEOT > & _archive, double _start=1.0, bool _nocopy=false) : comparator(paretoComparator), archive(_archive), start(_start), matrix(_nocopy)
     {}
 
 
@@ -86,7 +86,7 @@ public:
      * @param _start a start value used to determine the fitness (default _start = 1.0)
      * @param _nocopy boolean to penalize clone individuals (default = false)
      */
-    moeoDominanceRankFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, double _start=1.0, bool _nocopy=true) : comparator(_comparator), archive(defaultArchive), start(_start), matrix(_comparator, _nocopy)
+    moeoDominanceRankFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, double _start=1.0, bool _nocopy=false) : comparator(_comparator), archive(defaultArchive), start(_start), matrix(_comparator, _nocopy)
     {}
 
 
@@ -97,7 +97,7 @@ public:
      * @param _start a start value used to determine the fitness (default _start = 1.0)
      * @param _nocopy boolean to penalize clone individuals (default = false)
      */
-    moeoDominanceRankFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, moeoArchive < MOEOT > & _archive, double _start=1.0, bool _nocopy=true) : comparator(_comparator), archive(_archive), start(_start), matrix(_comparator, _nocopy)
+    moeoDominanceRankFitnessAssignment(moeoObjectiveVectorComparator < ObjectiveVector > & _comparator, moeoArchive < MOEOT > & _archive, double _start=1.0, bool _nocopy=false) : comparator(_comparator), archive(_archive), start(_start), matrix(_comparator, _nocopy)
     {}