--- src/sbin/ifconfig/af_link.c	2006/04/02 03:33:59	1.1
+++ src/sbin/ifconfig/af_link.c	2006/09/03 02:01:52	1.2
@@ -77,7 +77,7 @@ link_getaddr(const char *addr, int which
 
 	if (which != ADDR)
 		errx(1, "can't set link-level netmask or broadcast");
-	if ((temp = malloc(strlen(addr) + 1)) == NULL)
+	if ((temp = malloc(strlen(addr) + 2)) == NULL)
 		errx(1, "malloc failed");
 	temp[0] = ':';
 	strcpy(temp + 1, addr);