1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/libc/stdlib/malloc.c b/src/lib/libc/stdlib/malloc.c
index ff71da8f6e..c69ec8316a 100644
--- a/src/lib/libc/stdlib/malloc.c
+++ b/src/lib/libc/stdlib/malloc.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: malloc.c,v 1.146 2012/07/09 08:39:24 deraadt Exp $    */
+/*      $OpenBSD: malloc.c,v 1.147 2012/09/13 10:45:41 pirofti Exp $    */
 /*
  * Copyright (c) 2008 Otto Moerbeek <otto@drijf.net>
  *
@@ -1429,7 +1429,7 @@ mapalign(struct dir_info *d, size_t alignment, size_t sz, int zero_fill)
 {
         void *p, *q;
 
-        if (alignment < MALLOC_PAGESIZE || alignment & (alignment - 1) != 0) {
+        if (alignment < MALLOC_PAGESIZE || ((alignment - 1) & alignment) != 0) {
                 wrterror("mapalign bad alignment", NULL);
                 return MAP_FAILED;
         }