diff --git a/components/bt/host/bluedroid/device/controller.c b/components/bt/host/bluedroid/device/controller.c
index 0364ba2ca9..d471c8be9e 100644
--- a/components/bt/host/bluedroid/device/controller.c
+++ b/components/bt/host/bluedroid/device/controller.c
@@ -87,7 +87,7 @@ typedef struct {
     uint16_t ble_ext_adv_data_max_len;
 #endif // #if (BLE_50_EXTEND_ADV_EN == TRUE)
 #if (BLE_50_EXTEND_SYNC_EN == TRUE)
-    uint16_t get_ble_periodic_advertiser_list_size;
+    uint8_t get_ble_periodic_advertiser_list_size;
 #endif // #if (BLE_50_EXTEND_SYNC_EN == TRUE)
 #endif //#if (BLE_50_FEATURE_SUPPORT == TRUE)
 } controller_local_param_t;
diff --git a/components/bt/host/bluedroid/hci/hci_packet_parser.c b/components/bt/host/bluedroid/hci/hci_packet_parser.c
index 560ee7b4a1..87c8499f8e 100644
--- a/components/bt/host/bluedroid/hci/hci_packet_parser.c
+++ b/components/bt/host/bluedroid/hci/hci_packet_parser.c
@@ -219,7 +219,7 @@ static void parse_ble_read_suggested_default_data_length_response(
     uint16_t *ble_default_packet_txtime_ptr)
 {
 
-    uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_DEFAULT_DATA_LENGTH, 2 /* bytes after */);
+    uint8_t *stream = read_command_complete_header(response, HCI_BLE_READ_DEFAULT_DATA_LENGTH, 4 /* bytes after: 2+2 */);
     if (stream) {
         STREAM_TO_UINT16(*ble_default_packet_length_ptr, stream);
         STREAM_TO_UINT16(*ble_default_packet_txtime_ptr, stream);
@@ -235,7 +235,7 @@ static void parse_ble_read_adv_max_len_response(
     uint16_t *adv_max_len_ptr)
 {
 
-    uint8_t *stream = read_command_complete_header(response, HCI_BLE_RD_MAX_ADV_DATA_LEN, 1 /* bytes after */);
+    uint8_t *stream = read_command_complete_header(response, HCI_BLE_RD_MAX_ADV_DATA_LEN, 2 /* bytes after */);
     if (stream) {
         // Size: 2 Octets ; Value: 0x001F – 0x0672 ; Maximum supported advertising data length
         STREAM_TO_UINT16(*adv_max_len_ptr, stream);
@@ -246,7 +246,7 @@ static void parse_ble_read_adv_max_len_response(
 #if (BLE_50_EXTEND_SYNC_EN == TRUE)
 static void parse_ble_read_periodic_adv_list_size_response(
     BT_HDR *response,
-    uint16_t *periodic_adv_list_size_ptr)
+    uint8_t *periodic_adv_list_size_ptr)
 {
 
     uint8_t *stream = read_command_complete_header(response, HCI_BLE_RD_PERIOD_ADV_LIST_SIZE, 1 /* bytes after */);
diff --git a/components/bt/host/bluedroid/hci/include/hci/hci_packet_parser.h b/components/bt/host/bluedroid/hci/include/hci/hci_packet_parser.h
index c40ffef94c..d926dd67ad 100644
--- a/components/bt/host/bluedroid/hci/include/hci/hci_packet_parser.h
+++ b/components/bt/host/bluedroid/hci/include/hci/hci_packet_parser.h
@@ -114,7 +114,7 @@ typedef struct {
 #if (BLE_50_EXTEND_SYNC_EN == TRUE)
     void (*parse_ble_read_periodic_adv_list_size_response) (
         BT_HDR *response,
-        uint16_t *periodic_advertiser_list_size
+        uint8_t *periodic_advertiser_list_size
     );
 #endif // #if (BLE_50_EXTEND_SYNC_EN == TRUE)
 #endif // #if (BLE_50_FEATURE_SUPPORT == TRUE)