diff --git a/include/lorawan.h b/include/lorawan.h
index 3e930c7e..a0ea4880 100644
--- a/include/lorawan.h
+++ b/include/lorawan.h
@@ -3,6 +3,7 @@
 
 #include "globals.h"
 #include "rcommand.h"
+#include <TimeLib.h>
 
 // LMIC-Arduino LoRaWAN Stack
 #include <lmic.h>