diff --git a/monitor/bt.h b/monitor/bt.h
index fcd79d7..6e37b99 100644
--- a/monitor/bt.h
+++ b/monitor/bt.h
@@ -1293,3 +1293,8 @@ struct bt_hci_evt_le_long_term_key_request {
 #define BT_HCI_ERR_HARDWARE_FAILURE		0x03
 #define BT_HCI_ERR_PAGE_TIMEOUT			0x04
 #define BT_HCI_ERR_INVALID_PARAMETERS		0x12
+
+struct bt_l2cap_hdr {
+	uint16_t len;
+	uint16_t cid;
+} __attribute__ ((packed));
diff --git a/monitor/l2cap.c b/monitor/l2cap.c
index ecdd73c..70667ce 100644
--- a/monitor/l2cap.c
+++ b/monitor/l2cap.c
@@ -28,6 +28,7 @@
 
 #include <bluetooth/bluetooth.h>
 
+#include "bt.h"
 #include "packet.h"
 #include "display.h"
 #include "l2cap.h"
diff --git a/monitor/l2cap.h b/monitor/l2cap.h
index 6214364..ca5d777 100644
--- a/monitor/l2cap.h
+++ b/monitor/l2cap.h
@@ -24,9 +24,4 @@
 
 #include <stdint.h>
 
-struct bt_l2cap_hdr {
-	uint16_t len;
-	uint16_t cid;
-} __attribute__ ((packed));
-
 void l2cap_packet(uint16_t handle, const void *data, uint16_t size);