diff --git a/android/hal-ipc-api.txt b/android/hal-ipc-api.txt
index 88bcc12..f7c9f7d 100644
--- a/android/hal-ipc-api.txt
+++ b/android/hal-ipc-api.txt
@@ -1991,6 +1991,13 @@ Android HAL name: "gatt" (BT_PROFILE_GATT_ID)
 		                         Characteristic Handle (4 octets)
 
 	Opcode 0x98 - Descriptor Added notification
+
+		Notification parameters: Status (4 octets)
+		                         Server (4 octets)
+		                         UUID (6 octets)
+		                         Service Handle (4 octets)
+		                         Descriptor Handle (4 octets)
+
 	Opcode 0x99 - Service Started notification
 	Opcode 0x9a - Service Stopped notification
 	Opcode 0x9b - Service Deleted notification
diff --git a/android/hal-msg.h b/android/hal-msg.h
index d2743dd..5bf970a 100644
--- a/android/hal-msg.h
+++ b/android/hal-msg.h
@@ -1426,3 +1426,12 @@ struct hal_ev_gatt_server_characteristic_added {
 	int32_t srvc_handle;
 	int32_t char_handle;
 } __attribute__((packed));
+
+#define HAL_EV_GATT_SERVER_DESCRIPTOR_ADDED	0x98
+struct hal_ev_gatt_server_descriptor_added {
+	int32_t status;
+	int32_t server_if;
+	uint8_t uuid[16];
+	int32_t srvc_handle;
+	int32_t descr_handle;
+} __attribute__((packed));