diff --git a/garage/garage_esp32/garage_esp32.ino b/garage/garage_esp32/garage_esp32.ino
index 9243601..1014d02 100644
--- a/garage/garage_esp32/garage_esp32.ino
+++ b/garage/garage_esp32/garage_esp32.ino
@@ -400,6 +400,7 @@ void setup() {
         
         programStatus = 4;
         digitalWrite(PIN_SPRINKLER4, LOW);
+        sprinklerStartMillis = sprinklerStartMillis + ((sprinklerDuration / 2) * 60 * 1000); // XXX Terrasse nur halb so lange bewässern
         request->send(200, "application/json", "{ \"action\": \"start\" }");
       }
       else {
@@ -450,6 +451,7 @@ void loop() {
     }
     else {
       sprinklerDuration = 0;
+      sprinklerStartMillis = 0;
     }
   }