diff --git a/include/bluetooth/gatt.h b/include/bluetooth/gatt.h
index d9c9b5a42c2..d4c32623fb1 100644
--- a/include/bluetooth/gatt.h
+++ b/include/bluetooth/gatt.h
@@ -39,39 +39,39 @@ extern "C" {
 #include <bluetooth/att.h>
 
 /* GATT attribute permission bit field values */
+enum {
+	/** Attribute read permission. */
+	BT_GATT_PERM_READ = BIT(0),
 
-/** @def BT_GATT_PERM_READ
- *  @brief Attribute read permission.
- */
-#define BT_GATT_PERM_READ			BIT(0)
-/** @def BT_GATT_PERM_WRITE
- *  @brief Attribute write permission.
- */
-#define BT_GATT_PERM_WRITE			BIT(1)
-/** @def BT_GATT_PERM_READ_ENCRYPT
- *  @brief Attribute read permission with encryption.
- *
- *  If set, requires encryption for read access.
- */
-#define BT_GATT_PERM_READ_ENCRYPT		BIT(2)
-/** @def BT_GATT_PERM_WRITE_ENCRYPT
- *  @brief Attribute write permission with encryption.
- *
- *  If set, requires encryption for write access.
- */
-#define BT_GATT_PERM_WRITE_ENCRYPT		BIT(3)
-/** @def BT_GATT_PERM_READ_AUTHEN
- *  @brief Attribute read permission with authentication.
- *
- *  If set, requires encryption using authenticated link-key for read access.
- */
-#define BT_GATT_PERM_READ_AUTHEN		BIT(4)
-/** @def BT_GATT_PERM_WRITE_AUTHEN
- *  @brief Attribute write permission with authentication.
- *
- *  If set, requires encryption using authenticated link-key for write access.
- */
-#define BT_GATT_PERM_WRITE_AUTHEN		BIT(5)
+	/** Attribute write permission. */
+	BT_GATT_PERM_WRITE = BIT(1),
+
+	/** Attribute read permission with encryption.
+	 *
+	 *  If set, requires encryption for read access.
+	 */
+	BT_GATT_PERM_READ_ENCRYPT = BIT(2),
+
+	/** Attribute write permission with encryption.
+	 *
+	 *  If set, requires encryption for write access.
+	 */
+	BT_GATT_PERM_WRITE_ENCRYPT = BIT(3),
+
+	/** Attribute read permission with authentication.
+	 *
+	 *  If set, requires encryption using authenticated link-key for read
+	 *  access.
+	 */
+	BT_GATT_PERM_READ_AUTHEN = BIT(4),
+
+	/** Attribute write permission with authentication.
+	 *
+	 *  If set, requires encryption using authenticated link-key for write
+	 *  access.
+	 */
+	BT_GATT_PERM_WRITE_AUTHEN = BIT(5),
+};
 
 /**  @def BT_GATT_ERR
   *  @brief Construct error return value for attribute read and write callbacks.