diff --git a/bin/named/logconf.c b/bin/named/logconf.c
index 6a3d485ac1..69e37a5013 100644
--- a/bin/named/logconf.c
+++ b/bin/named/logconf.c
@@ -17,6 +17,8 @@
 
 #include <config.h>
 
+#include <isc/string.h>
+
 #include <named/log.h>
 #include <named/logconf.h>
 
@@ -174,5 +176,3 @@ ns_log_configure(isc_logconfig_t *lcctx, dns_c_logginglist_t *clog) {
 		isc_logconfig_destroy(&lcctx);
 	return (result);
 }
-
-
diff --git a/bin/named/server.c b/bin/named/server.c
index e79896b973..011cce2fa9 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -23,6 +23,7 @@
 #include <isc/base64.h>
 #include <isc/dir.h>
 #include <isc/lex.h>
+#include <isc/string.h>
 #include <isc/task.h>
 #include <isc/timer.h>
 #include <isc/util.h>
diff --git a/bin/named/update.c b/bin/named/update.c
index cae6967efd..9a0f9930a4 100644
--- a/bin/named/update.c
+++ b/bin/named/update.c
@@ -17,6 +17,7 @@
 
 #include <config.h>
 
+#include <isc/string.h>
 #include <isc/taskpool.h>
 #include <isc/util.h>