diff --git a/bin/named/server.c b/bin/named/server.c
index 943bdf1cb8..737df4b45d 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -45,6 +45,7 @@
 #include <isc/httpd.h>
 #include <isc/job.h>
 #include <isc/lex.h>
+#include <isc/lmdb.h>
 #include <isc/loop.h>
 #include <isc/meminfo.h>
 #include <isc/netmgr.h>
diff --git a/bin/tools/named-nzd2nzf.c b/bin/tools/named-nzd2nzf.c
index d18b4cce73..82b9c61294 100644
--- a/bin/tools/named-nzd2nzf.c
+++ b/bin/tools/named-nzd2nzf.c
@@ -11,13 +11,10 @@
  * information regarding copyright ownership.
  */
 
-#include <lmdb.h>
 #include <stdio.h>
 #include <stdlib.h>
-
 #include <isc/lib.h>
-
-/* Included just to get DNS_LMDB_FLAGS definition */
+#include <isc/lmdb.h>
 #include <dns/view.h>
 
 int
diff --git a/lib/dns/include/dns/view.h b/lib/dns/include/dns/view.h
index 3f95ec73fd..a4243ca06e 100644
--- a/lib/dns/include/dns/view.h
+++ b/lib/dns/include/dns/view.h
@@ -248,17 +248,6 @@ struct dns_view {
 #define DNS_VIEWATTR_ADBSHUTDOWN 0x02
 #define DNS_VIEWATTR_REQSHUTDOWN 0x04
 
-#define DNS_LMDB_COMMON_FLAGS (MDB_CREATE | MDB_NOSUBDIR | MDB_NOLOCK)
-#ifndef __OpenBSD__
-#define DNS_LMDB_FLAGS (DNS_LMDB_COMMON_FLAGS)
-#else /* __OpenBSD__ */
-/*
- * OpenBSD does not have a unified buffer cache, which requires both reads and
- * writes to be performed using mmap().
- */
-#define DNS_LMDB_FLAGS (DNS_LMDB_COMMON_FLAGS | MDB_WRITEMAP)
-#endif /* __OpenBSD__ */
-
 void
 dns_view_create(isc_mem_t *mctx, isc_loopmgr_t *loopmgr,
 		dns_dispatchmgr_t *dispmgr, dns_rdataclass_t rdclass,
diff --git a/lib/dns/view.c b/lib/dns/view.c
index ac70a18f98..f5b72debef 100644
--- a/lib/dns/view.c
+++ b/lib/dns/view.c
@@ -15,7 +15,6 @@
 
 #include <inttypes.h>
 #include <limits.h>
-#include <lmdb.h>
 #include <stdbool.h>
 
 #include <isc/atomic.h>
@@ -23,6 +22,7 @@
 #include <isc/file.h>
 #include <isc/hash.h>
 #include <isc/lex.h>
+#include <isc/lmdb.h>
 #include <isc/md.h>
 #include <isc/result.h>
 #include <isc/stats.h>
diff --git a/lib/isc/Makefile.am b/lib/isc/Makefile.am
index 261160a662..26f809e1b1 100644
--- a/lib/isc/Makefile.am
+++ b/lib/isc/Makefile.am
@@ -45,6 +45,7 @@ libisc_la_HEADERS =			\
 	include/isc/lex.h		\
 	include/isc/lib.h		\
 	include/isc/list.h		\
+	include/isc/lmdb.h		\
 	include/isc/log.h		\
 	include/isc/loop.h		\
 	include/isc/magic.h		\
diff --git a/lib/isc/cfgmgr.c b/lib/isc/cfgmgr.c
index fcb77f17af..af55f5e59f 100644
--- a/lib/isc/cfgmgr.c
+++ b/lib/isc/cfgmgr.c
@@ -11,17 +11,17 @@
  * information regarding copyright ownership.
  */
 
-#include <lmdb.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <isc/cfgmgr.h>
 #include <isc/list.h>
+#include <isc/lmdb.h>
 #include <isc/mem.h>
 #include <isc/random.h>
 #include <isc/thread.h>
 #include <isc/util.h>
-#include <isc/cfgmgr.h>
 
 /*
  * See MDB_MAXKEYSIZE documentation, but not accessible as defined in
diff --git a/lib/isc/include/isc/lmdb.h b/lib/isc/include/isc/lmdb.h
new file mode 100644
index 0000000000..391303c24f
--- /dev/null
+++ b/lib/isc/include/isc/lmdb.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+#pragma once
+
+#include <lmdb.h>
+
+#define DNS_LMDB_COMMON_FLAGS (MDB_NOSUBDIR | MDB_NOLOCK)
+#ifndef __OpenBSD__
+#define DNS_LMDB_FLAGS (DNS_LMDB_COMMON_FLAGS)
+#else /* __OpenBSD__ */
+/*
+ * OpenBSD does not have a unified buffer cache, which requires both reads and
+ * writes to be performed using mmap().
+ */
+#define DNS_LMDB_FLAGS (DNS_LMDB_COMMON_FLAGS | MDB_WRITEMAP)
+#endif /* __OpenBSD__ */