diff --git a/.vscode/settings.json b/.vscode/settings.json
index bf562e6..0228b50 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,6 @@
 {
-    "C_Cpp.errorSquiggles": "Enabled"
+    "C_Cpp.errorSquiggles": "Enabled",
+    "files.associations": {
+        "uart.h": "c"
+    }
 }
\ No newline at end of file
diff --git a/main/main.c b/main/main.c
index 7560fba..3c22e9d 100644
--- a/main/main.c
+++ b/main/main.c
@@ -26,7 +26,7 @@
 #include "esp_gatt_defs.h"
 #include "esp_bt_main.h"
 #include "esp_system.h"
-#include "esp_gatt_common_api.h"
+    #include "esp_gatt_common_api.h"
 #include "esp_log.h"
 #include "freertos/FreeRTOS.h"
 
@@ -59,11 +59,11 @@ enum
 {
     SPP_IDX_SVC,
 
-    SPP_IDX_SPP_DATA_RECV_VAL,
-
     SPP_IDX_SPP_DATA_NTY_VAL,
     SPP_IDX_SPP_DATA_NTF_CFG,
 
+    SPP_IDX_SPP_DATA_RECV_VAL,
+
 #ifdef SUPPORT_HEARTBEAT
     SPP_IDX_SPP_HEARTBEAT_VAL,
     SPP_IDX_SPP_HEARTBEAT_CFG,