diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 78b9573f4a73..72c5aa05a489 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -35,11 +35,13 @@
 
 #define AUTH_REQ_MASK   0x07
 
-#define SMP_FLAG_TK_VALID	1
-#define SMP_FLAG_CFM_PENDING	2
-#define SMP_FLAG_MITM_AUTH	3
-#define SMP_FLAG_COMPLETE	4
-#define SMP_FLAG_INITIATOR	5
+enum {
+	SMP_FLAG_TK_VALID,
+	SMP_FLAG_CFM_PENDING,
+	SMP_FLAG_MITM_AUTH,
+	SMP_FLAG_COMPLETE,
+	SMP_FLAG_INITIATOR,
+};
 
 struct smp_chan {
 	struct l2cap_conn *conn;