diff --git a/lib/isc/hash.c b/lib/isc/hash.c
index 01d8cd9282..bb40b953c4 100644
--- a/lib/isc/hash.c
+++ b/lib/isc/hash.c
@@ -15,7 +15,7 @@
  * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: hash.c,v 1.3 2003/07/29 04:22:53 marka Exp $ */
+/* $Id: hash.c,v 1.4 2003/07/29 04:31:23 marka Exp $ */
 
 /*
  * Some portion of this code was derived from universal hash function
@@ -58,6 +58,8 @@ or otherwise) arising in any way out of the use of this software, even
 if advised of the possibility of such damage.
 */
 
+#include <config.h>
+
 #include <isc/entropy.h>
 #include <isc/hash.h>
 #include <isc/mem.h>