diff --git a/android/hal-ipc-api.txt b/android/hal-ipc-api.txt
index 6fa0d3b..e88a85d 100644
--- a/android/hal-ipc-api.txt
+++ b/android/hal-ipc-api.txt
@@ -1885,8 +1885,7 @@ Android HAL name: "gatt" (BT_PROFILE_GATT_ID)
 	Opcode 0x8b - Notify notification
 
 		Notification parameters: Connection ID (4 octets)
-		                         Notify Parameters (variable)
-		Valid Notify Parameters: Address (6 octets)
+		                         Address (6 octets)
 		                         GATT Service ID (18 octets)
 		                         GATT Char. ID (17 octets)
 		                         Is Notify (1 octet)
diff --git a/android/hal-msg.h b/android/hal-msg.h
index 90d6854..ebf6d89 100644
--- a/android/hal-msg.h
+++ b/android/hal-msg.h
@@ -1310,7 +1310,8 @@ struct hal_ev_gatt_client_reg_for_notif {
 } __attribute__((packed));
 
 #define HAL_EV_GATT_CLIENT_NOTIFY		0x8b
-struct hal_gatt_notify_params {
+struct hal_ev_gatt_client_notify {
+	int32_t conn_id;
 	uint8_t bda[6];
 	struct hal_gatt_srvc_id srvc_id;
 	struct hal_gatt_gatt_id char_id;
@@ -1319,11 +1320,6 @@ struct hal_gatt_notify_params {
 	uint8_t  value[0];
 } __attribute__((packed));
 
-struct hal_ev_gatt_client_notify {
-	int32_t conn_id;
-	struct hal_gatt_notify_params data;
-} __attribute__((packed));
-
 #define HAL_EV_GATT_CLIENT_READ_CHARACTERISTIC	0x8c
 struct hal_gatt_unformated_value {
 	uint16_t len;