diff --git a/trunk/paradiseo-mo/src/neighborhood/moNeighborhoodSizeUtils.h b/trunk/paradiseo-mo/src/neighborhood/moNeighborhoodSizeUtils.h
index c7b8c50bb..5a17d475b 100755
--- a/trunk/paradiseo-mo/src/neighborhood/moNeighborhoodSizeUtils.h
+++ b/trunk/paradiseo-mo/src/neighborhood/moNeighborhoodSizeUtils.h
@@ -54,7 +54,8 @@ static int factorial(int _i) {
  */
 
 static int sizeMapping(int _n, unsigned int _xChange) {
-	int _sizeMapping = _n;
+	int _sizeMapping;
+	_sizeMapping = _n;
 	for (int i = _xChange-1; i > 0; i--) {
 		_sizeMapping *= (_n - i);
 	}