diff --git a/src/machine/m_xt_t1000.c b/src/machine/m_xt_t1000.c
index 3471b0c12..fc0205552 100644
--- a/src/machine/m_xt_t1000.c
+++ b/src/machine/m_xt_t1000.c
@@ -240,6 +240,7 @@ tc8521_time_get(uint8_t *regs, struct tm *tm)
 	tm->tm_hour = ((nibbles(TC8521_HOUR) % 12) +
 		      (regs[TC8521_HOUR10] & 0x02) ? 12 : 0);
 //FIXME: wday
+    tm->tm_wday = 1;	/* Dummy value so it is not uninitialized. */
     tm->tm_mday = nibbles(TC8521_DAY);
     tm->tm_mon = (nibbles(TC8521_MONTH) - 1);
     tm->tm_year = (nibbles(TC8521_YEAR) + 1980);