diff --git a/lib/dns/lib.c b/lib/dns/lib.c
index dba4671308..837d89af68 100644
--- a/lib/dns/lib.c
+++ b/lib/dns/lib.c
@@ -15,10 +15,12 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: lib.c,v 1.7 2000/08/01 01:22:27 tale Exp $ */
+/* $Id: lib.c,v 1.8 2000/08/30 01:24:19 bwelling Exp $ */
 
 #include <config.h>
 
+#include <stddef.h>
+
 #include <isc/once.h>
 #include <isc/msgcat.h>
 #include <isc/util.h>
diff --git a/lib/dns/sec/dst/dst_lib.c b/lib/dns/sec/dst/dst_lib.c
index 0802a334ef..fc0b9e2cf2 100644
--- a/lib/dns/sec/dst/dst_lib.c
+++ b/lib/dns/sec/dst/dst_lib.c
@@ -17,11 +17,13 @@
 
 /*
  * Principal Author: Brian Wellington
- * $Id: dst_lib.c,v 1.6 2000/08/01 01:27:48 tale Exp $
+ * $Id: dst_lib.c,v 1.7 2000/08/30 01:24:20 bwelling Exp $
  */
 
 #include <config.h>
 
+#include <stddef.h>
+
 #include <isc/once.h>
 #include <isc/msgcat.h>
 #include <isc/util.h>