diff --git a/WiFiManager.cpp b/WiFiManager.cpp
index 703283e..16676f2 100644
--- a/WiFiManager.cpp
+++ b/WiFiManager.cpp
@@ -3674,7 +3674,7 @@ void WiFiManager::WiFi_autoReconnect(){
       DEBUG_WM(DEBUG_VERBOSE,F("ESP32 event handler enabled"));
       #endif
       using namespace std::placeholders;
-      wm_event_id = WiFi.onEvent(std::bind(&WiFiManager::WiFiEvent,this,_1,_2));
+      if(wm_event_id !=0) wm_event_id = WiFi.onEvent(std::bind(&WiFiManager::WiFiEvent,this,_1,_2));
     // }
   #endif
 }
diff --git a/WiFiManager.h b/WiFiManager.h
index 9e696c8..cb88c40 100644
--- a/WiFiManager.h
+++ b/WiFiManager.h
@@ -481,7 +481,7 @@ class WiFiManager
     bool          _allowExit              = true; // allow exit non blocking
 
     #ifdef ESP32
-    wifi_event_id_t wm_event_id;
+    wifi_event_id_t wm_event_id           = 0;
     static uint8_t _lastconxresulttmp; // tmp var for esp32 callback
     #endif