diff --git a/trunk/paradiseo-mo/src/moVNS.h b/trunk/paradiseo-mo/src/moVNS.h
index d200c2f31..f25a45f7d 100644
--- a/trunk/paradiseo-mo/src/moVNS.h
+++ b/trunk/paradiseo-mo/src/moVNS.h
@@ -95,7 +95,7 @@ class moVNS : public moAlgo < EOT>
 	    full_evaluation(solution_second);
 	  }
 	
-	if( solution_second > solution_initial ) 
+	if( solution_second.fitness() > solution_initial.fitness() )
 	  {
 	    solution_initial=solution_second;
 	    change=true;