diff --git a/mkdocs/api.md b/mkdocs/api.md
index 9bcaa11..22b5fe0 100644
--- a/mkdocs/api.md
+++ b/mkdocs/api.md
@@ -15,6 +15,7 @@
 #define AUTOCONNECT_AP_GW       0x01F4A8C0      // Default SoftAP Gateway IP
 #define AUTOCONNECT_AP_NM       0x00FFFFFF      // Default subnet mask
 #define AUTOCONNECT_DNSPORT     53              // Default DNS port at captive portal
+#define AUTOCONNECT_HTTPPORT    80              // Default HTTP
 #define AUTOCONNECT_MENU_TITLE  "AutoConnect"   // Default AutoConnect menu title
 #define AUTOCONNECT_STARTUPTIME 10              // Default waiting time[s] for after reset
 #define AUTOCONNECT_URI         "/_ac"          // Default AutoConnect root path
diff --git a/src/AutoConnect.cpp b/src/AutoConnect.cpp
index 77aa666..e4c5b87 100644
--- a/src/AutoConnect.cpp
+++ b/src/AutoConnect.cpp
@@ -231,7 +231,7 @@ void AutoConnect::_startWebServer() {
   // Boot Web server
   if (!_webServer) {
     // Only when hosting WebServer internally
-    _webServer.reset(new ESP8266WebServer(80));
+    _webServer.reset(new ESP8266WebServer(AUTOCONNECT_HTTPPORT));
     _webServerAlloc = AC_WEBSERVER_HOSTED;
     AC_DBG("ESP8266WebServer allocated\n");
   }
diff --git a/src/AutoConnect.h b/src/AutoConnect.h
index 8abc043..0a34e61 100644
--- a/src/AutoConnect.h
+++ b/src/AutoConnect.h
@@ -84,8 +84,12 @@ extern "C" {
 #define AUTOCONNECT_STARTUPTIME 10
 #endif
 
+#ifndef AUTOCONNECT_HTTPPORT
+#define AUTOCONNECT_HTTPPORT    80
+#endif
+
 #ifndef AUTOCONNECT_DNSPORT
-#define AUTOCONNECT_DNSPORT 53
+#define AUTOCONNECT_DNSPORT     53
 #endif
 
 /**< A type to save established credential at WiFi.begin automatically. */