diff --git a/Rtcs.h b/Rtcs.h
index eedc38f..93d8194 100644
--- a/Rtcs.h
+++ b/Rtcs.h
@@ -6,6 +6,7 @@
 #define RTCS_H
 
 #include "RtcFC7240.h"
+#include "LoggerInterface.h"
 
 typedef struct {
     tRtcFlagchip rtc;