diff --git a/src/util/processinfo.c b/src/util/processinfo.c
index b1b1737459..af19723b4c 100644
--- a/src/util/processinfo.c
+++ b/src/util/processinfo.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009-2010 Red Hat, Inc.
+ * Copyright (C) 2009-2010, 2012 Red Hat, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -140,6 +140,7 @@ realloc:
     for (i = 0 ; i < maxcpu ; i++)
         if (CPU_ISSET_S(i, masklen, mask))
             VIR_USE_CPU(map, i);
+    CPU_FREE(mask);
 # else
     /* Legacy method uses a fixed size cpu mask, only allows upto 1024 cpus */
     cpu_set_t mask;