diff --git a/rtc.c b/rtc.c
index fa83173..d946541 100644
--- a/rtc.c
+++ b/rtc.c
@@ -148,6 +148,8 @@ RTC_Initialise(int initial_set)
     if (driver.init) {
       if ((driver.init)()) {
         driver_initialised = 1;
+      } else {
+        LOG(LOGS_ERR, "RTC driver could not be initialised");
       }
     } else {
       LOG(LOGS_ERR, "RTC not supported on this operating system");