diff --git a/trunk/paradiseo-peo/src/peoAsyncIslandMig.h b/trunk/paradiseo-peo/src/peoAsyncIslandMig.h
index 5917eafb2..fe0970714 100644
--- a/trunk/paradiseo-peo/src/peoAsyncIslandMig.h
+++ b/trunk/paradiseo-peo/src/peoAsyncIslandMig.h
@@ -186,7 +186,7 @@ template< class  TYPESELECT, class TYPEREPLACE> void peoAsyncIslandMig< TYPESELE
 template< class TYPESELECT , class TYPEREPLACE> void peoAsyncIslandMig< TYPESELECT , TYPEREPLACE > :: operator()()
 {
 
-  if (cont.check())
+  if (! cont.check())
     {
 
       emigrate();	
diff --git a/trunk/paradiseo-peo/src/peoData.h b/trunk/paradiseo-peo/src/peoData.h
index 4596976db..f64ffffe7 100644
--- a/trunk/paradiseo-peo/src/peoData.h
+++ b/trunk/paradiseo-peo/src/peoData.h
@@ -74,7 +74,7 @@ template < class EOT> class eoContinuator : public continuator
     {}
 
 	//! @brief Virtual function of check
-	//! @return true if the algorithm must continue
+	//! @return false if the algorithm must continue
     virtual bool check()
     {
       return cont(pop);
diff --git a/trunk/paradiseo-peo/src/peoSyncIslandMig.h b/trunk/paradiseo-peo/src/peoSyncIslandMig.h
index 25d61408c..d435839da 100644
--- a/trunk/paradiseo-peo/src/peoSyncIslandMig.h
+++ b/trunk/paradiseo-peo/src/peoSyncIslandMig.h
@@ -203,7 +203,7 @@ template< class TYPESELECT, class TYPEREPLACE > void peoSyncIslandMig< TYPESELEC
 template< class TYPESELECT, class TYPEREPLACE > void peoSyncIslandMig< TYPESELECT , TYPEREPLACE > :: operator()()
 {
 
-  if ( cont.check() )
+  if (! cont.check() )
     {
       explicitPassive = standbyMigration = false;
       topology.setNeighbors( this, in, out );