diff --git a/lib/dns/include/dns/zone.h b/lib/dns/include/dns/zone.h
index 83bac41985..5a0456ac08 100644
--- a/lib/dns/include/dns/zone.h
+++ b/lib/dns/include/dns/zone.h
@@ -23,12 +23,9 @@
  ***/
 
 #include <isc/lang.h>
-#include <isc/mem.h>
-#include <isc/mutex.h>
 #include <isc/rwlock.h>
-#include <isc/time.h>
-#include <isc/stdtime.h>
-#include <isc/socket.h>
+#include <isc/sockaddr.h>
+#include <isc/types.h>
 
 #include <dns/types.h>
 #include <dns/result.h>