diff --git a/samples/boards/bbc_microbit/pong/src/ble.c b/samples/boards/bbc_microbit/pong/src/ble.c
index b82dd8e0970..f3334b8ebc7 100644
--- a/samples/boards/bbc_microbit/pong/src/ble.c
+++ b/samples/boards/bbc_microbit/pong/src/ble.c
@@ -16,6 +16,7 @@
 #include <bluetooth/uuid.h>
 #include <bluetooth/conn.h>
 #include <bluetooth/gatt.h>
+#include <bluetooth/hci.h>
 
 
 #include "pong.h"
diff --git a/tests/bluetooth/tester/src/gap.c b/tests/bluetooth/tester/src/gap.c
index 4544e91bf18..e2795479288 100644
--- a/tests/bluetooth/tester/src/gap.c
+++ b/tests/bluetooth/tester/src/gap.c
@@ -13,6 +13,7 @@
 #include <toolchain.h>
 #include <bluetooth/bluetooth.h>
 #include <bluetooth/conn.h>
+#include <bluetooth/hci.h>
 
 #include <sys/byteorder.h>
 #include <net/buf.h>