diff --git a/wled00/json.cpp b/wled00/json.cpp
index 1dc79ad8..ec05773b 100644
--- a/wled00/json.cpp
+++ b/wled00/json.cpp
@@ -939,7 +939,7 @@ void serializeInfo(JsonObject root)
   root[F("release")] = FPSTR(releaseString);
   root[F("rel")] = FPSTR(releaseString); //WLEDMM to add bin name
 
- root[F("deviceId")] = getDeviceId();
+  root[F("deviceId")] = getDeviceId();
 
   JsonObject leds = root.createNestedObject("leds");
   leds[F("count")] = strip.getLengthTotal();
diff --git a/wled00/util.cpp b/wled00/util.cpp
index fca60b2d..59305123 100644
--- a/wled00/util.cpp
+++ b/wled00/util.cpp
@@ -710,7 +710,11 @@ String generateDeviceFingerprint() {
   esp_chip_info(&chip_info);
   esp_efuse_mac_get_default((uint8_t*)fp);
   fp[1] ^= ESP.getFlashChipSize();
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 3)
   fp[0] ^= chip_info.full_revision | (chip_info.model << 16);
+#else
+  fp[0] ^= chip_info.revision | (chip_info.model << 16);
+#endif
   // mix in ADC calibration data:
   esp_adc_cal_characteristics_t ch;
   #if SOC_ADC_MAX_BITWIDTH == 13 // S2 has 13 bit ADC