diff --git a/src/java/com/threerings/presents/server/RebootManager.java b/src/java/com/threerings/presents/server/RebootManager.java
index 7042ec226..bd2208c28 100644
--- a/src/java/com/threerings/presents/server/RebootManager.java
+++ b/src/java/com/threerings/presents/server/RebootManager.java
@@ -81,7 +81,7 @@ public abstract class RebootManager
             return false;
         }
 
-        Builder cal = Calendars.now().zeroTime().setHour(getRebootHour()).addDays(freq);
+        Builder cal = Calendars.now().zeroTime().addHours(getRebootHour()).addDays(freq);
 
         // maybe avoid weekends
         if (getSkipWeekends()) {