diff --git a/tasmota/xdrv_29_deepsleep.ino b/tasmota/xdrv_29_deepsleep.ino
index a5a402e90..dc7d76adc 100644
--- a/tasmota/xdrv_29_deepsleep.ino
+++ b/tasmota/xdrv_29_deepsleep.ino
@@ -120,7 +120,7 @@ void DeepSleepPrepare(void)
 
   // It may happen that wakeup in just <5 seconds in future
   // In this case also add deepsleep to nextwakeup
-  if (RtcSettings.nextwakeup <= (LocalTime() - DEEPSLEEP_MIN_TIME)) {
+  if (RtcSettings.nextwakeup <= (LocalTime() + DEEPSLEEP_MIN_TIME)) {
     // ensure nextwakeup is at least in the future
     RtcSettings.nextwakeup += (((LocalTime() + DEEPSLEEP_MIN_TIME - RtcSettings.nextwakeup) / Settings->deepsleep) + 1) * Settings->deepsleep;
   }