diff --git a/libraries/ESP32/examples/DeepSleep/ExternalWakeUp/ExternalWakeUp.ino b/libraries/ESP32/examples/DeepSleep/ExternalWakeUp/ExternalWakeUp.ino
index 5d357128a21..8a13b77196d 100644
--- a/libraries/ESP32/examples/DeepSleep/ExternalWakeUp/ExternalWakeUp.ino
+++ b/libraries/ESP32/examples/DeepSleep/ExternalWakeUp/ExternalWakeUp.ino
@@ -36,12 +36,12 @@ void print_wakeup_reason(){
 
   switch(wakeup_reason)
   {
-    case 1  : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
-    case 2  : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
-    case 3  : Serial.println("Wakeup caused by timer"); break;
-    case 4  : Serial.println("Wakeup caused by touchpad"); break;
-    case 5  : Serial.println("Wakeup caused by ULP program"); break;
-    default : Serial.println("Wakeup was not caused by deep sleep"); break;
+    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
+    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
+    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
+    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
+    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
+    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
   }
 }
 
diff --git a/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino b/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino
index d1743cdcaee..e8f280f3824 100644
--- a/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino
+++ b/libraries/ESP32/examples/DeepSleep/TimerWakeUp/TimerWakeUp.ino
@@ -35,11 +35,11 @@ void print_wakeup_reason(){
 
   switch(wakeup_reason)
   {
-    case 1  : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
-    case 2  : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
-    case 3  : Serial.println("Wakeup caused by timer"); break;
-    case 4  : Serial.println("Wakeup caused by touchpad"); break;
-    case 5  : Serial.println("Wakeup caused by ULP program"); break;
+    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
+    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
+    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
+    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
+    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
     default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
   }
 }
diff --git a/libraries/ESP32/examples/DeepSleep/TouchWakeUp/TouchWakeUp.ino b/libraries/ESP32/examples/DeepSleep/TouchWakeUp/TouchWakeUp.ino
index e6784049983..52f252f17b8 100644
--- a/libraries/ESP32/examples/DeepSleep/TouchWakeUp/TouchWakeUp.ino
+++ b/libraries/ESP32/examples/DeepSleep/TouchWakeUp/TouchWakeUp.ino
@@ -26,12 +26,12 @@ void print_wakeup_reason(){
 
   switch(wakeup_reason)
   {
-    case 1  : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
-    case 2  : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
-    case 3  : Serial.println("Wakeup caused by timer"); break;
-    case 4  : Serial.println("Wakeup caused by touchpad"); break;
-    case 5  : Serial.println("Wakeup caused by ULP program"); break;
-    default : Serial.println("Wakeup was not caused by deep sleep"); break;
+    case ESP_SLEEP_WAKEUP_EXT0 : Serial.println("Wakeup caused by external signal using RTC_IO"); break;
+    case ESP_SLEEP_WAKEUP_EXT1 : Serial.println("Wakeup caused by external signal using RTC_CNTL"); break;
+    case ESP_SLEEP_WAKEUP_TIMER : Serial.println("Wakeup caused by timer"); break;
+    case ESP_SLEEP_WAKEUP_TOUCHPAD : Serial.println("Wakeup caused by touchpad"); break;
+    case ESP_SLEEP_WAKEUP_ULP : Serial.println("Wakeup caused by ULP program"); break;
+    default : Serial.printf("Wakeup was not caused by deep sleep: %d\n",wakeup_reason); break;
   }
 }