diff --git a/environments.ini b/environments.ini
index a330d88..5e363e5 100644
--- a/environments.ini
+++ b/environments.ini
@@ -117,6 +117,7 @@ build_flags =
   '-DDEEP_SLEEP_IN_US=120000000' ; Deep sleep for a period of time to conserve battery
   '-DESP32_EXT0_WAKE_PIN=GPIO_NUM_14' ;Should a water leak be detected immediatly wake the ESP32 and report the problem
   '-DESP32_EXT0_WAKE_PIN_STATE=0' ;Should a water leak be detected immediatly wake the ESP32 and report the problem, sensor state to look for wakeup
+  '-UMQTT_HTTPS_FW_UPDATE' ;disable HTTPS firmware updating
 [env:esp32dev-rf]
 platform = ${com.esp32_platform}
 board = esp32dev
diff --git a/main/ZwebUI.ino b/main/ZwebUI.ino
index 0d88558..8268cbf 100644
--- a/main/ZwebUI.ino
+++ b/main/ZwebUI.ino
@@ -1056,6 +1056,7 @@ void handleIN() {
   }
 }
 
+#  if defined(ESP32) && defined(MQTT_HTTPS_FW_UPDATE)
 /**
  * @brief /UP - Firmware Upgrade Page
  * 
@@ -1121,6 +1122,7 @@ void handleUP() {
   response += String(buffer);
   server.send(200, "text/html", response);
 }
+#  endif
 
 void sendRestartPage() {
   char jsonChar[100];
@@ -1257,8 +1259,9 @@ void WebUISetup() {
 
   server.on("/in", handleIN); // Information
   server.on("/cs", handleCS); // Console
+#  if defined(ESP32) && defined(MQTT_HTTPS_FW_UPDATE)
   server.on("/up", handleUP); // Firmware Upgrade
-
+#  endif
   server.on("/cn", handleCN); // Configuration
   server.on("/wi", handleWI); // Configure Wifi
   server.on("/mq", handleMQ); // Configure MQTT
diff --git a/main/config_WebContent.h b/main/config_WebContent.h
index 64796d0..ef0f010 100644
--- a/main/config_WebContent.h
+++ b/main/config_WebContent.h
@@ -34,8 +34,11 @@
 #define body_footer_config_menu "<div id=but3d style=\"display: block;\"></div><p><form id=but3 style=\"display: block;\" action='cn' method='get'><button>Configuration</button></form></p>"
 #define body_header             "<body><div style='text-align:left;display:inline-block;min-width:360px;'><div style='text-align:center;'><noscript> To use, please enable JavaScript <br></noscript><h3>%s</h3><h2>%s</h2></div>"
 
-#define button_upgrade "<p><form id=but5 style='display: block;' action='up' method='get'><button>Firmware Upgrade</button></form></p>"
-
+#if defined(ESP32) && defined(MQTT_HTTPS_FW_UPDATE)
+#  define button_upgrade "<p><form id=but5 style='display: block;' action='up' method='get'><button>Firmware Upgrade</button></form></p>"
+#else
+#  define button_upgrade ""
+#endif
 // Configuration Menu
 
 #define configure_1 "<p><form action='wi' method='get'><button>Configure WiFi</button></form></p>"