diff --git a/examples/tinymqtt-test/tinymqtt-test.ino b/examples/tinymqtt-test/tinymqtt-test.ino
index 4a8965b..6fd3a6c 100644
--- a/examples/tinymqtt-test/tinymqtt-test.ino
+++ b/examples/tinymqtt-test/tinymqtt-test.ino
@@ -3,6 +3,7 @@
 #if defined(ESP8266)
   #include <ESP8266mDNS.h>
 #elif defined(ESP32)
+  #include <WiFi.h>
   #include <ESPmDNS.h>
 #else
   #error Unsupported platform