diff --git a/wled00/wled.cpp b/wled00/wled.cpp
index 69e58dfea..54c723c80 100644
--- a/wled00/wled.cpp
+++ b/wled00/wled.cpp
@@ -389,7 +389,9 @@ void WLED::setup()
     sprintf(mqttClientID + 5, "%*s", 6, escapedMac.c_str() + 6);
   }
 
+#ifdef WLED_ENABLE_ADALIGHT
   if (Serial.available() > 0 && Serial.peek() == 'I') handleImprovPacket();
+#endif
 
   strip.service();
 
@@ -409,7 +411,10 @@ void WLED::setup()
   initDMX();
 #endif
 
+#ifdef WLED_ENABLE_ADALIGHT
   if (Serial.available() > 0 && Serial.peek() == 'I') handleImprovPacket();
+#endif
+
   // HTTP server page init
   initServer();