diff --git a/ESPFirewall/src/main.cpp b/ESPFirewall/src/main.cpp
index 6b68a97..aab0d28 100644
--- a/ESPFirewall/src/main.cpp
+++ b/ESPFirewall/src/main.cpp
@@ -17,6 +17,7 @@ fw::API *firewallApi;
 
 WiFiServer wifiServer(80);
 
+#ifdef ESP8266
 void toggleLED()
 {
   if (digitalRead(LED) == LOW)
@@ -24,6 +25,7 @@ void toggleLED()
   else
     digitalWrite(LED, LOW);
 }
+#endif
 
 void setup()
 {