diff --git a/Packages/kdtree/include/CGAL/kdtree_d.h b/Packages/kdtree/include/CGAL/kdtree_d.h
index 1e454437c3f..619ee7b6957 100644
--- a/Packages/kdtree/include/CGAL/kdtree_d.h
+++ b/Packages/kdtree/include/CGAL/kdtree_d.h
@@ -195,7 +195,7 @@ public:
             //printf( "p_arr(new): %p\n", (void *)p_arr );
             assert( p_arr != NULL );
         
-            memset( p_arr, 0, sizeof( coordinate_type ) * dim );
+			CGAL_CLIB_STD::memset( p_arr, 0, sizeof( coordinate_type ) * dim );
         }
 
     public:
diff --git a/Packages/kdtree/version b/Packages/kdtree/version
index 2ad1216db5c..f133d51ce7c 100644
--- a/Packages/kdtree/version
+++ b/Packages/kdtree/version
@@ -1 +1 @@
-2.2.15 (10 Apr 2001)
+2.2.16 (30 May 2001)