diff --git a/lib/dns/zone.c b/lib/dns/zone.c
index 3b2ad41cf0..ece6eb5807 100644
--- a/lib/dns/zone.c
+++ b/lib/dns/zone.c
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: zone.c,v 1.438 2005/06/07 01:21:32 marka Exp $ */
+/* $Id: zone.c,v 1.439 2005/06/10 07:51:54 marka Exp $ */
 
 /*! \file */
 
@@ -2563,7 +2563,7 @@ dns_zone_setmasterswithkeys(dns_zone_t *zone, isc_sockaddr_t *masters,
 	/*
 	 * Similarly for mastersok.
 	 */
-	newok = isc_mem_get(zone->mctx, count * sizeof(newok));
+	newok = isc_mem_get(zone->mctx, count * sizeof(*newok));
 	if (newok == NULL) {
 		result = ISC_R_NOMEMORY;
 		isc_mem_put(zone->mctx, new, count * sizeof(*new));