diff --git a/trunk/paradiseo-mo/src/neighborhood/moKswapNeighbor.h b/trunk/paradiseo-mo/src/neighborhood/moKswapNeighbor.h
index bad75ec24..8e67e6fdc 100644
--- a/trunk/paradiseo-mo/src/neighborhood/moKswapNeighbor.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moKswapNeighbor.h
@@ -58,8 +58,8 @@ public:
 	 * @param _Kswap the number of swap to do
 	 */
 
-	moKswapNeighbor() :
-		moIndexSwapNeighbor<EOT>(Kswap) {
+	moKswapNeighbor(unsigned int _Kswap) :
+		moIndexSwapNeighbor<EOT>(_Kswap) {
 
 	}
 
@@ -74,8 +74,11 @@ public:
 			tmp[0] = _solution[indices[i]];
 			_solution[indices[i]] = _solution[indices[i + 1]];
 			_solution[indices[i + 1]] = tmp[0];
+			printf("move %d %d %d \n",i,indices[i],indices[i + 1]);
+			std::cout << _solution[indices[i]]<< " " <<_solution[indices[i+1]] << std::endl;
 		}
 		_solution.invalidate();
+
 	}
 
 	/**