diff --git a/src/gatt-database.c b/src/gatt-database.c
index 99c95f2..1f7ce5f 100644
--- a/src/gatt-database.c
+++ b/src/gatt-database.c
@@ -1656,27 +1656,21 @@ static bool parse_chrc_flags(DBusMessageIter *array, uint8_t *props,
 			*ext_props |= BT_GATT_CHRC_EXT_PROP_WRITABLE_AUX;
 		} else if (!strcmp("encrypt-read", flag)) {
 			*props |= BT_GATT_CHRC_PROP_READ;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_ENC_READ;
 			*perm |= BT_ATT_PERM_READ | BT_ATT_PERM_READ_ENCRYPT;
 		} else if (!strcmp("encrypt-write", flag)) {
 			*props |= BT_GATT_CHRC_PROP_WRITE;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_ENC_WRITE;
 			*perm |= BT_ATT_PERM_WRITE | BT_ATT_PERM_WRITE_ENCRYPT;
 		} else if (!strcmp("encrypt-authenticated-read", flag)) {
 			*props |= BT_GATT_CHRC_PROP_READ;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_AUTH_READ;
 			*perm |= BT_ATT_PERM_READ | BT_ATT_PERM_READ_AUTHEN;
 		} else if (!strcmp("encrypt-authenticated-write", flag)) {
 			*props |= BT_GATT_CHRC_PROP_WRITE;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_AUTH_WRITE;
 			*perm |= BT_ATT_PERM_WRITE | BT_ATT_PERM_WRITE_AUTHEN;
 		} else if (!strcmp("secure-read", flag)) {
 			*props |= BT_GATT_CHRC_PROP_READ;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_AUTH_READ;
 			*perm |= BT_ATT_PERM_READ | BT_ATT_PERM_READ_SECURE;
 		} else if (!strcmp("secure-write", flag)) {
 			*props |= BT_GATT_CHRC_PROP_WRITE;
-			*ext_props |= BT_GATT_CHRC_EXT_PROP_AUTH_WRITE;
 			*perm |= BT_ATT_PERM_WRITE | BT_ATT_PERM_WRITE_SECURE;
 		} else if (!strcmp("authorize", flag)) {
 			*req_prep_authorization = true;
diff --git a/src/shared/att-types.h b/src/shared/att-types.h
index 3adc05d..a08b241 100644
--- a/src/shared/att-types.h
+++ b/src/shared/att-types.h
@@ -151,14 +151,6 @@ struct bt_att_pdu_error_rsp {
 /* GATT Characteristic Extended Properties Bitfield values */
 #define BT_GATT_CHRC_EXT_PROP_RELIABLE_WRITE		0x01
 #define BT_GATT_CHRC_EXT_PROP_WRITABLE_AUX		0x02
-#define BT_GATT_CHRC_EXT_PROP_ENC_READ			0x04
-#define BT_GATT_CHRC_EXT_PROP_ENC_WRITE			0x08
-#define BT_GATT_CHRC_EXT_PROP_ENC	(BT_GATT_CHRC_EXT_PROP_ENC_READ | \
-					BT_GATT_CHRC_EXT_PROP_ENC_WRITE)
-#define BT_GATT_CHRC_EXT_PROP_AUTH_READ			0x10
-#define BT_GATT_CHRC_EXT_PROP_AUTH_WRITE		0x20
-#define BT_GATT_CHRC_EXT_PROP_AUTH	(BT_GATT_CHRC_EXT_PROP_AUTH_READ | \
-					BT_GATT_CHRC_EXT_PROP_AUTH_WRITE)
 
 /* GATT Characteristic Client Features Bitfield values */
 #define BT_GATT_CHRC_CLI_FEAT_ROBUST_CACHING		0x01